That's the work that the system is doing to the environment. I'm doing work to the environment. The work is negative, which means that work is being done to the environment.

功的大小,就是矩形的面积,这样我们就实现了一台热机，冷却，加热，加热,冷却，系统回到了初态。

麻省理工公开课 - 热力学与动力学课程节选

Anyway, the work associated with process number two is described by this box.

好，刚才那个过程的功,由这个矩形描述。

麻省理工公开课 - 热力学与动力学课程节选

And in the ancient world, the reason for this was that this very small rectangle--;it's about 150 miles long and 70 miles wide, about the size of Rhode Island--this very small rectangle lies on the way to anywhere worth going in the Ancient Near East.

在古代，战争的原因是,这小块矩形，长150公里，宽70公里，与罗德岛大小相当，这小块矩形处于要道,这条路通向古代近东的任何地区。

耶鲁公开课 - 旧约导论课程节选

The building of buildings in the shape of what the Greeks called a megaron, a rectangular center, which has a hearth in it, a front porch, and a back porch which will be the style in which Greek temples are built in the historical period.

建筑物呈现出希腊人所称的,中央大厅的形状,一个矩形的大厅,有一个壁炉在中间,一个前走廊,和一个后走廊,具有古希腊神庙的风格,修建于有史料记载的时期

耶鲁公开课 - 古希腊历史简介课程节选

And, again, the rectangle represents your computer's RAM, the bottom represents the part of RAM that we generally call the stack, main conceptually ends up on the bottom of the stack followed foo by its local variables then the function say foo that it calls and on and on and on and up, but there is, in fact, something above all of this and we've seen this picture briefly and that's this thing called the heap.

再次，矩形表示的是计算机内存，底端表示内存的一部分,通常我们把它叫做堆栈，main函数在,堆栈的底端，之后是,它的局部变量，然后是它调用的函数,等等等等，但是那里有，实际上，在这个上面，我们粗略看看这个图画,这个东西叫做堆。

哈佛公开课 - 计算机科学课程节选