浓密的络腮胡子不见了，换成了一撇密匝匝的小胡子。

The thick beard had gone, replaced by a bushy moustache.

《柯林斯英汉双解大词典》

在这边，有q 1一撇。

So on the side of it we have q1 prime.

youdao

这就是说1，负q 1一撇加q 1大于零。

That says that minus q1 prime plus q1 is greater than zero.

youdao

And we're going to have q2 prime, and we're going to draw the arrows in the positive direction in these cases.

还有q2一撇，在这个例子中,我们把箭头朝正方向。

麻省理工公开课 - 热力学与动力学课程节选

So we can just write out what those are, minus w prime over q1 prime q1 is greater than minus w over q1.

因此可以写出，负w一撇除以q1一撇,大于负w除以。

麻省理工公开课 - 热力学与动力学课程节选

If she's got a pair of numbers and you got a pair of numbers, the new numbers are called the primed numbers and you want to write them in terms of yours.

如果她有一组系数 你也有一组系数,新的系数被称作带撇的系数,你想用自己的形式来表示它们

耶鲁公开课 - 基础物理课程节选