drag force

基本解釋

The gas was slowed by a drag force similar to air resistance.
由于類似空氣阻力的牽引作用，這些氣體的（運行）速度減緩。
The combination of low pressure on one side and high pressure on the other creates a drag force that must be overcome — a significant waste of energy.
為此，必須浪費大量能源以克服壓力差產(chǎn)生的拉力。
If you kick the ball hard enough for the airflow over the surface to become turbulent, then the drag force remains small and the ball will really fly.
如果你踢球的力量足夠大，使得球表面的氣流形成湍流，則阻力會很小，你很可能踢成高射炮。

The lower density means dramatically less drag force acting on the spinning disk stack so that mechanical power into the motor is substantially reduced.
ENGADGET: HGST develops helium-filled, high-capacity hard drives: no, they won't float away
But the debt left by the boomers adds to the drag of slower labour-force growth.
ECONOMIST: The next crisis

阻力
Through the calculation, it can be validated that the period of lift force is about twice of the drag force.
通過計算，可以驗證作用在立管上的升力周期是阻力的2倍。
交通運輸工程
拖曳力
The equations of the three dimensional motion of a marine cable are formulated considering seabed touchdown, fluid drag force, interia force and structure damping. The characteristics of dynamic tesion and the interactions of seabed and the cable are invested.
考慮海底支持力、流體拖曳力、慣性力、結(jié)構(gòu)阻尼等因素建立了系纜的運動方程,研究系纜的動張力變化特性以及海底支持力對系纜的影響。
牽引阻力
阻力

阻力
Comparison between normalized spectra of drag force and lift force is made, it shows drag force spectra is relatively broad-band, and lift force spectra is relatively narrow-band.4.
通過比較標(biāo)準(zhǔn)化后的阻力和升力譜,發(fā)現(xiàn)阻力譜為相對寬帶譜,而升力受渦脫落影響更為嚴(yán)重,呈現(xiàn)相對窄帶譜的形式。