If now we want to know what f prime is, f v/c plus v over c times the cosine of theta.

若想知道f撇的大小，撇等于f乘以1，then，f，prime，equals，f，times，one,加上,乘以cosθ

youdao

Normally I couldn't do that Vdp because this term would have p dV plus V dp, but we've specified the pressure is constant, so the dp part is zero.

一般情况下我不能这么写,因为这一项会包含pdV和，但是我们已经假定压强为常数，所以包含dp的部分等于零。

youdao

It's going to be the same temperature as before but the volume is V plus dV now.

温度和之前一样，但现在体积是V+dV。

youdao

V Plus V.

再加上。

麻省理工公开课 - 热力学与动力学课程节选

Normally I couldn't do that Vdp because this term would have p dV plus V dp, but we've specified the pressure is constant, so the dp part is zero.

一般情况下我不能这么写,因为这一项会包含pdV和，但是我们已经假定压强为常数，所以包含dp的部分等于零。

麻省理工公开课 - 热力学与动力学课程节选

V So it's minus T dV/dT at constant p, plus V.

负的T乘以恒定压强下dV/dT，再加上。

麻省理工公开课 - 热力学与动力学课程节选

Rather, it's a 4.0-liter that's essentially like two tight V-4 engines joined at the hip (V plus V equals a W).

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