1) Control using Atmosphere Drag
大气阻力控制
2) atmospheric drag
大气阻力
1.
The simulative results show: Firstly,with the decrease of orbital altitude per 100 km,atmospheric drag will increase 10 times approximately,and the unstable work environment of satellite platform will influence the measuring accuracy of GRACE key payloads.
模拟结果表明:1)卫星轨道高度每降低100 km,大气阻力提高约10倍,不稳定的卫星平台工作环境将影响GRACE核心载荷的测量精度;2)地球重力场高频信号衰减较快,基于500 km轨道高度,在20阶处重力场衰减因子为0。
3) barometric pressure control
大气压力控制
4) choke control
阻气门控制
5) resistance control method
阻力控制法
1.
The calculating method for determining the pipe diameter by flow speed control method was introduced, calculating example for determining the pipe diameter by flow speed control method and resistance control method was listed respectively.
介绍了流速控制法确定管径的计算方法 ,分别列举了用流速控制法和阻力控制法确定管径的计算实例。
2.
Based on energy conversion philosophy during flow process of fluid in pipe, calculating formula for determining pipe diameter by resistance control method is derived, the most direct relation, of energy loss during fluid's flow process inside pipe versus designing pipe size, has been established in order to determine pipe size by controlling the pipe resistance.
分析了用流速控制法确定管径存在的问题,根据流体在管道内流动过程中能量转化原理,推导出阻力控制法确定管径的计算公式,将流体在管道内流动过程中的能量损失与所设计的管道尺寸建立最直接的关联,从而达到用控制管道阻力来确定管道尺寸的目的。
6) controls resistance
控制器阻力
补充资料：肺循环阻力(或全肺阻力)
肺循环阻力(或全肺阻力)
pulmonary circulation resistance
血液在肺部血管内流动时和血管壁之间的摩擦力和血液内部的摩擦阻力。肺动脉管壁较薄，分支短而管径大，故肺动脉的可扩性较大，对血流的阻力很小，仅0.12PRU(外周阻力单位)。肺循环动脉部分总的阻力和静脉部分总的阻力相等，故血液流动时在动脉部分的压力降落和静脉部分的压力降落相等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条