The agreement to be signed Thursday replaces the START-1 treaty, which U.S.President George H.W.Bush and Soviet President Mikhail Gorbachev signed in 1991.

VOA: standard.2010.04.04

Wirr Minus w irreversible, this is the work which is done to the environment by the system, -Wrev minus w irreversible is always smaller than minus w reversible.

一点提示，不可逆过程中系统,对外界做的功，总是小于,之前我们。

麻省理工公开课 - 热力学与动力学课程节选

Q So it's just capital W over capital Q, q1 which is to say it's minus all that stuff over q1.

所以效率就是W除以，等于负的所有这些之和除以。

麻省理工公开课 - 热力学与动力学课程节选

The word "swale" is interesting. You hear in it the s and the w, the two key sounds of this poem, which are the sounds of the whispering scythe.

沼泽地“这个词很有意思，听到S和W的发音了吧，这是这首诗的关键发音，也是低语着的镰刀的声音。

耶鲁公开课 - 现代诗歌课程节选

V Minus p2, V2. Minus p delta V. So the total work is the work from the left hand side plus the work on the right hand side, p1 V1- p2 V2 which is p1 V1 minus p2 V2.

负p2V2【w=-p2v2】，即负pΔ,所以全部的功就是,左边的功加上右边的功，等于。

麻省理工公开课 - 热力学与动力学课程节选

He invites us to hear the sweep of the scythe in those s sounds themselves, I think, and maybe even to hear the workers huff and puff, his rhythmic exhalation in the w's, which alternate and interact with those s's.

他让我们倾听镰刀扫过的声音,我觉得应该是这些s的发音上,也可能是听着劳动者的喘息声，他的有节奏的w似的发声，跟s音交替着互动。

耶鲁公开课 - 现代诗歌课程节选