Still,the W.H.O.says there are two major barriers.

VOA: special.2010.04.13

There's W.H. Auden, an English-born poet who moved to America.

有奥登，出生于英国却搬到美国去的诗人。

耶鲁公开课 - 现代诗歌课程节选

w This is just q plus w. There's w, RT1 ln q has to be R T1 log of V2 over V1.

而U等于q加，那是w，q应该是。

麻省理工公开课 - 热力学与动力学课程节选

And because there is an explicit relationship between u, delta u, q and w, you can always find the easy way to derive the change in internal energy or the heat or the work.

因为Δu，q和w之间,有明确的关系，一般来说,内能或热或功的变化,易于计算。

麻省理工公开课 - 热力学与动力学课程节选

U It's u, because u is to q plus w right, heat and work, but it's adiabatic. So there's no heat, exchange with the environment, and it's constant volume, so there's no p dV work, right.

什么是零？是U，因为,等于q加w，热量和功，但这是绝热的，所以系统与环境间没有热量交换；,同时它是灯体的，所以也没有pdV形式的功。

麻省理工公开课 - 热力学与动力学课程节选