surface integral

基本解釋

Whenever you do a surface integral for flux you have two parts of the story.
每當(dāng)做通量的曲面積分時(shí),你要做兩件事。
This relates a line integral for one field to a surface integral from another field.
這把一個(gè)向量場(chǎng)的線積分,和另外一個(gè)向量場(chǎng)的曲面積分聯(lián)系起來(lái)。
Flux looks quite different in the plane and in space because, in the plane, it is just another kind of line integral, while in space it is a surface integral.
平面中的通量和空間中的通量有很大區(qū)別,在平面中，通量?jī)H僅是線積分的另一種形式，而在空間中，它表現(xiàn)為曲面積分。

Like Earth, Titan's atmosphere is composed primarily of nitrogen, but the liquids and vapors on the moon's surface are made of methane and other organic chemicals integral to the creation of complex life.
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