hydraulic
gb/haɪdɹˈɔlɪk/ us/haɪdɹˈɔlɪk/
B2
英语
~ 9200
义项
0 个义项
adjective
technical
B2
property
1
using pressurized liquid to work
Working by using liquid under pressure, usually oil, to move parts of a machine.
用法模式：
hydraulic [machine/system/part]
常见错误：
Learners sometimes think 'hydraulic' simply means 'water-powered' because of the 'hydro-' root. In modern engineering, hydraulic systems usually use oil or another special liquid, not plain water. Another mistake is using it as a noun (e.g. *"the hydraulic"*) instead of as an adjective modifying a noun (e.g. "the hydraulic system").
近义词
fluid-powered (Broader and less specific; can refer to any fluid, while 'hydraulic' typically refers to liquid, especially oil.)
反义词
electric (Describes machines powered by electricity instead of pressurized liquid.)
搭配
hydraulic system
|hydraulic brakes
|hydraulic press
|hydraulic pump
|hydraulic jack
|hydraulic lift
主题
engineering
|technology
|transport
|work
例句
- The excavator’s hydraulic arm can lift several tons of rock.
- Modern cars often use hydraulic brakes for smoother and safer stopping.
- The mechanic said there was a leak in the hydraulic line.
- He raised the car with a small hydraulic jack.
- The factory installed a new hydraulic press to shape the metal parts.
学习者例句
- This machine has a powerful hydraulic arm.
- The car’s hydraulic brakes need more fluid.
- A hydraulic jack can lift a heavy car.
- The engineer checked the hydraulic system for leaks.
- They use a hydraulic press to cut the metal.
adjective
technical
C1
property
2
relating to liquid flow behavior
About how water or other liquids move and act in science or engineering.
用法模式：
hydraulic [properties/behavior/model/engineering]
常见错误：
Learners may confuse this scientific meaning with the more common mechanical sense and think it always involves machines. In environmental science, however, 'hydraulic' can describe natural systems, like rivers or groundwater, not just man-made equipment.
近义词
fluid-flow (Informal technical description that focuses on movement of fluids in general; 'hydraulic' is the standard technical term in many fields.)
反义词
dry (Describes conditions without water or moisture, in contrast to situations involving moving water or other liquids.)
搭配
hydraulic conductivity
|hydraulic gradient
|hydraulic properties
|hydraulic behavior
|hydraulic model
|hydraulic engineering
主题
science
|engineering
|environment
|technology
例句
- The study examined the hydraulic properties of the soil around the river.
- Engineers built a hydraulic model of the dam to test different flood scenarios.
- Groundwater flow is controlled by the hydraulic conductivity of the rock layers.
- Hydraulic engineering plays a key role in designing safe flood defenses.
- The report describes the hydraulic behavior of the new drainage system.
学习者例句
- We measured the hydraulic properties of the sand in the lab.
- This course teaches basic hydraulic engineering for rivers and canals.
- The hydraulic model helps us see how the water will move.
- Hydraulic data are important for building a safe bridge over the river.
- Scientists studied the hydraulic behavior of water in the tunnel.
语法
词典原形
hydraulic
IPA
GB/haɪdɹˈɔlɪk/
US/haɪdɹˈɔlɪk/
音节与重音
hy - draul - ic （3 个音节）
Stress on 2nd syllable (draul)
词形变化
Adjective
- Base: hydraulic
词族
Core family
hydraulically
adverb
hydraulics
noun
相关表达
hydraulic brakes
1/haɪdɹˈɔlɪk bɹˈeɪks/
fixed phrase
technical
brakes using pressurized fluid
Brakes that use liquid under pressure to make a vehicle slow down or stop.
例句
- Most modern cars are equipped with hydraulic brakes.
- Air in the line can make hydraulic brakes feel soft and unsafe.
- The mechanic bled the hydraulic brakes to remove bubbles from the fluid.
hydraulic engineering
1/haɪdɹˈɔlɪk ˈɛnd͡ʒənˈɪɹɪŋ/
fixed phrase
technical
engineering of water and liquid systems
A type of engineering that focuses on how water and other liquids move and how to control them, for example in rivers, dams, and pipes.
例句
- She decided to specialize in hydraulic engineering at university.
- Hydraulic engineering is essential for safe dam and canal design.
- The project team includes experts in hydraulic engineering and environmental science.
hydraulic fracturing
1/haɪdɹˈɔlɪk fɹˈækt͡ʃɚɪŋ/
fixed phrase
technical
cracking rock with high-pressure fluid
A method of getting oil or gas from deep rock by pushing liquid into the rock at very high pressure to crack it open.
例句
- Hydraulic fracturing has transformed the country’s natural gas industry.
- Some communities are worried about the environmental impact of hydraulic fracturing.
- The report explains how hydraulic fracturing increases the flow of gas from shale formations.
hydraulic jack
1/haɪdɹˈɔlɪk d͡ʒˈæk/
fixed phrase
technical
lifting tool using pressurized liquid
A tool that uses liquid under pressure to lift heavy things, like cars.
例句
- He used a small hydraulic jack to lift the car and change the tire.
- The garage replaced its old jacks with safer hydraulic jacks.
- Always place the hydraulic jack on solid ground before lifting a vehicle.
hydraulic lift
1/haɪdɹˈɔlɪk lˈɪft/
fixed phrase
technical
platform raised by hydraulic system
A platform or elevator that goes up and down using liquid under pressure.
例句
- The car was raised on a hydraulic lift so the mechanic could inspect the underside.
- Workers stood on a hydraulic lift to reach the top of the wall.
- The service center installed a new hydraulic lift to handle larger vehicles.
hydraulic power
1/haɪdɹˈɔlɪk pˈaʊɚ/
fixed phrase
technical
power from pressurized liquid
Energy or force created and carried by liquid under pressure to do work.
例句
- The lift runs on hydraulic power supplied by an electric pump.
- Hydraulic power is widely used in construction machinery.
- The new system increases the available hydraulic power without changing the pump.
hydraulic press
1/haɪdɹˈɔlɪk pɹˈɛs/
fixed phrase
technical
machine that presses with fluid power
A machine that uses liquid under pressure to push down with very strong force, often to shape or crush materials.
例句
- They used a hydraulic press to form the metal sheet into shape.
- In the video, a hydraulic press crushes everyday objects for fun.
- The factory upgraded to a larger hydraulic press to handle thicker steel.
hydraulic pump
1/haɪdɹˈɔlɪk pˈʌmp/
fixed phrase
technical
pump that creates hydraulic pressure
A machine part that pushes liquid so there is enough flow and pressure in a hydraulic system.
例句
- A noisy hydraulic pump can be a sign of air in the system.
- The hydraulic pump is driven by the engine’s belt.
- They replaced the old hydraulic pump to improve the speed of the lift.
hydraulic system
1/haɪdɹˈɔlɪk sˈɪstəm/
fixed phrase
technical
machine setup using pressurized liquid
A group of parts in a machine that use liquid under pressure to move or do work.
例句
- The plane’s hydraulic system controls the landing gear and the flaps.
- A leak in the hydraulic system can cause the entire machine to stop working.
- The technician inspected the hydraulic system before restarting the factory line.
hydraulic fluid
1/haɪdɹˈɔlɪk flˈuɪd/
fixed phrase
technical
special liquid for hydraulic systems
The special liquid that flows inside a hydraulic system to carry force and make parts move.
例句
- The mechanic topped up the hydraulic fluid in the lift.
- Low hydraulic fluid can cause the steering to feel heavy and unresponsive.
- Low hydraulic fluid can cause the system to fail.
- Always use the recommended hydraulic fluid for your tractor.
- Always use the correct hydraulic fluid for this machine.
- The leak was traced to a worn seal that was letting hydraulic fluid escape.