1.
There are two kinds of drags, parasite drag and induced drag.
阻力有两种：寄生阻力和诱导阻力。
2.
blade profile drag coefficient
桨叶剖面阻力系数，叶型阻力系数
3.
resistance head
阻力压头(用压头表示的阻力损失)
4.
exhibiting or relating to electrical resistance.
显示出电阻力的，或关于电阻的。
5.
electronic countermeasure resistant communication system
电子对抗阻力通信系统
6.
vertical resistance
竖面（垂直方向）阻力
7.
mechanical behavior of effective force
工作阻力的机械特性
8.
frictional soil
内摩擦阻力大的土壤
9.
drag coefficient
牵引系数，阻力系数
10.
pylon diagonal drag brace
吊臂架交叉阻力支撑条
11.
head of fluid frictinal loss
流体摩擦阻力损失压头
12.
An aircraft has to overcome the resistance of the air.
飞机须克服空气的阻力。
13.
Sometimes resistances are installed in parallel.
但有时阻力为并联布置。
14.
The contact resistance is difficult to measure.
接触阻力很难测量。
15.
fluid drag and head loss
水流阻力和水头损失
16.
Correcting for the effects of air resistance.
弥补空气阻力的影响
17.
for it has undergone resistance and pressure.
因为有了阻力才有磨炼。
18.
resistance test of forearm extensor
前臂伸肌抗阻力试验