The surface force per unit area exerted at the top of a wellbore when it is closed at either the Christmas tree or the BOP stack. 当采油树或防喷器组关闭时,施加在井口单位面积上的力称之为为关井压力。 www.infopetro.com.cn 2. Pressure is an expression of the force required to stop a ...
unit,unit of measurement- any division of quantity accepted as a standard of measurement or exchange; "the dollar is the United States unit of currency"; "a unit of wheat is a bushel"; "change per unit volume" dyne- a unit of force equal to the force that imparts an acceleration of ...
③Gravitationalfieldstrengthisdefinedastheforceperunitmassactingatapoint.gWWmgm 6 •GravitationalfieldstrengthhasSIunitsofN·kg-1andisavectorquantity.•Thegravitationalaccelerationofthegravitationalfieldneartheearth'ssurfaceis9.8N·kg-1.(weoftenuse10m/s2.itmakescalculationseasier)•Weightdirectionisvertically...
We have names for units of time, space, mass, force, work; but no names for units of velocity, acceleration, impulse, momentum, &c. I venture to suggest the following:鈥擫et the unit velocity be that with which a point describes uniformly one foot per second. Let this unit be called...
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[translate] a3point5 3point5 [translate] aölüyoz ölüyoz [translate] aspecific (per mass unit) maximum traction force 具体(每个质量单位)最大牵引力量 [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 西班牙语翻译 葡萄牙语翻译 意大利语翻译 荷兰语翻译 瑞典语翻译...
Convert Kilogram Force Per Square Meter to Psi (kgf/m2 in psi). Kilogram Force Per Square Meter and Psi both are the units of PRESSURE. See the charts and tables conversion here!
We studied the relation between force normalized by dry mass per unit length and the myosin fraction of muscle dry mass. The two tibialis anterior muscles were dissected from 12 frogs ( Rana temporaria ). Then, from one muscle, two single fast-twitch fibres were isolated. Each fibre was moun...
Per unit actuator mass, both the force and the velocity induced by microscale actuators show an order of magnitude (22.1 and 18.5 times, respectively) increase over macroscale actuators, making them suitable for distributed flow control applications. 展开 ...
Testing conditions consisted of six trials, totaling three per leg. In all cases, participants switched the leg in contact with the ground after each trial to ameliorate the effects of fatigue. In another session, we characterized force-position control. This session contained five conditions—one ...