For that experiment, the constraint, so we need a constraint here, right, we need a constraint here. Right?

对于这个实验，我们需要一个限制，对吗？,我们需要一个限制？

麻省理工公开课 - 热力学与动力学课程节选

I gotta put that constraint in there for an ideal gas.

注意只适用。

麻省理工公开课 - 热力学与动力学课程节选

Bitter constraint, and sad occasion dear, Compels me to disturb your season due: For Lycidas is dead, dead ere his prime... Milton is lamenting, once again, that Milton has been compelled to begin writing.

因为亲友的惨遇，痛苦的重压，迫使我前来扰乱你正茂的年华：,利西达斯死了，死于峥嵘岁月。,弥尔顿再一次哀叹道，他是不得以写这首诗的。

耶鲁公开课 - 弥尔顿课程节选