And this is finally where I have left the world of surface integrals to go back to a usual double integral.

也就是最终要摆脱曲面积分，回到常规的二重积分。

youdao

So large is the Pacific, covering 30% of the planet's surface, that the additional energy generated by its warming is enough to touch off a series of weather changes around the world.

太平洋面积非常大，覆盖了地球表面的30%，其海水升温产生的额外热量足以引发世界各地一系列的气候变化。

youdao

Found in all the oceans of the world, including the Arctic Ocean, appendicularians tend to remain near the water's surface where the density of phytoplankton is greatest.

在世界上所有的海洋，包括北冰洋，尾海鞘都是出没在浮游植物密度最大的水域表面。

youdao

Most maps of the world show lines that are not on the Earth's surface.

VOA: special.2010.07.14

And just as in that earlier poem the act of fishing is symbolically resonant "The Fisherman" is an image of man searching the depths of the world for the wisdom that hides beneath the surface of things.

和以前的事一样,也是有象征意味的,渔夫是一个探索世界的深邃,和隐藏在事物表面下的智慧,的一个人物形象。

耶鲁公开课 - 现代诗歌课程节选

One of the other things that MHC1 does, in addition to marking yourselves as your own, is that it's capable of making combinations with all the different molecules that are present inside the cell and expressing them on the surface, and sort of showing them to the outside world.

HC1的另一项功能,除了给你标记一个独一无二的标签以外,MHC可以和细胞内所有不同的,分子结合 使其能够呈现在细胞表面,使其暴露于外界

耶鲁公开课 - 生物医学工程探索课程节选

In most parts of the world the surface of the sea is not warm enough for hurricanes to form.

ECONOMIST: Fiddling with clouds could help tame hurricanes

In the mid-1980s the fashionable eco-catastrophe was nuclear winter millions of tonnes of smoke deposited in the upper atmosphere as the result of a nuclear war causing a drastic drop in the surface temperature of the world.

ECONOMIST: Letters

It remains defective as the treaty has yet to be amended and its central feature remains - the establishment of a supranational agency to govern three quarters of the world's surface and the oceans and airspace above them.

CENTERFORSECURITYPOLICY: Conservatives unite to oppose LOST