快, 速率 快行 速率
- 速率是物理学中的一个基本概念，用来表示物体运动的快慢程度。
- 在日常生活中，速率常常和速度混用，但两者在物理学中对应着不同的概念。速率是一个标量，只有大小，没有方向。它的量纲是长度除以时间。速度的量纲和速率相同，但速度是有方向的向量。
- 国际单位制中，速率的單位為米每秒（m/s），但日常生活中較常用的單位是千米每小時（km/hr）或是英制系統下的英里每小時（mph）。海上船只或物体的行進速率，一般會使用節作為單位。
- 名词 (Noun)PLspeeds
- The state of moving quickly or the capacity for rapid motion; rapidity.
- How does Usain Bolt run at that speed?
- The rate of motion or action, specifically (mathematics)/(physics) the magnitude of the velocity; the rate distance is traversed in a given time.
- (photography) The sensitivity to light of film, plates or sensor.
- (photography) The duration of exposure, the time during which a camera shutter is open.
- (photography) The largest size of the lens opening at which a lens can be used.
- (photography) The ratio of the focal length to the diameter of a photographic objective.
- SLA NU Any amphetamine drug used as a stimulant, especially illegally, especially methamphetamine.
- (archaic) Luck, success, prosperity.
- 动词 (Verb)SGspeedsPRspeedingPT, PPspedPT, PPspeeded
- VI (archaic) To succeed; to prosper, be lucky.
- VT (archaic) To help someone, to give them fortune; to aid or favour.
- God speed, until we meet again.
- VI To go fast.
- The Ferrari was speeding along the road.
- VI To exceed the speed limit.
- Why do you speed when the road is so icy?
- VT To increase the rate at which something occurs.
- VI SLA To be under the influence of stimulant drugs, especially amphetamines.
- OBS To be expedient.
- (archaic) To hurry to destruction; to put an end to; to ruin.
- (archaic) To wish success or good fortune to, in any undertaking, especially in setting out upon a journey.
- To cause to make haste; to dispatch with celerity; to drive at full speed; hence, to hasten; to hurry.
- To hasten to a conclusion; to expedite.
- 更多范例
- 用于句中
- 13 June 1997, Los Angeles Times - MOVIE REVIEW Speed 2: Cruise Control
- The guider of all crownes, Graunt that our deeds may wel deserve your loves: And so they shall, if fortune speed my will, And yeeld our thoughts to height of my desertes.
- Experiments in the macaque show that eye movement speed can be >20% higher when the target is rewarded compared with nonrewarded (Bendiksby and Platt 2006).
- 用于句尾
- For example, the vehicle starts off in second gear or an upshift takes place at lower engine speeds.
- Defeat 12 months ago away to the same opponents signalled the end of John Toshack's reign as Wales manager, ushering in first caretaker Brian Flynn and then current boss Gary Speed.
- I bet the Jayhawk fast break could show up the Nimrod's lack of speed.
Meaning of speed for the defined word.
在语法上，这个单字"speed"是一个
名词，更具体地来说，是一个
可数名词和一个
单数形态。它同时也是一个
动词，更具体地来说，是一个
不及物动词和一个
及物动词。
- 词类阶层 (Part-of-Speech Hierarchy)
- 名词
- 动词
困难度: 级别 1
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容易 ➨ 困难
明确性: 级别 9
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明确的 ➨ 多用途
相关连结:
- fr speed
- en speedily
- en speedy
- en speedway
- en speedball