So, what it does actually is it computes a line integral.
它实际上做的是计算线积分。
The 'V. Bulgakov' is the work of former pilot Valery Bulgakov, 72, and though it looks rather cobbled together it does actually fly - albeit not very high or far.
“V·布尔加科夫”号飞天车出自72岁的前飞行员瓦列里·布尔加科夫之手，虽然外形看似粗劣组装而成，它却可以确确实实地飞起来——只不过飞得不远也不高。
Dashan: It does. Actually, I wouldn't mind taking some weight off my feet, too.
大山：确实有。说句实话我也想歇歇脚。
Dashan: It does. Actually, I wouldn't mind taking some weight off my feet, too.
大山：确实有。说句实话我也想歇歇脚。
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