好奇号的长度是之前火星探测器的两倍，重量则超出了四倍多。
Curiosity is about twice as long and more than five times as heavy as any previous Mars rover.
但是只要两条边的长度有一丝不同，光电探测器将记录下分光的轨迹。
But if there is any difference between the lengths of the two arms, some light will travel to where it can be recorded by a photodetector.
距叶栅上游长度为L处有一个压力探测器。
There is a pressure probe at a measurement location a distance L upstream of the blade row.
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