因此天文学家采用了一种聪明的办法来推断银河系的重量，即通过测量它如何牵引在其周围转动的行星。
So astronomers have devised clever ways of inferring the mass of our galaxy by measuring how it pulls on smaller objects moving around it.
说句题外话，像“GPS”(即“全球定位系统”——译者注)这样的技术倒的确可以通过三角测量的卫星定位进行远程跟踪，比如说跟踪某个坐在车里的人。
As an aside, a technology such as GPS can in fact track a thing or, say a person in a vehicle, remotely from far away, by triangulating off of satellites.
本文研究了利用自动平衡电桥方法，通过测量高端和低端两路矢量电压来精确测量电感L、电容C和电阻R（即LCR）。
This paper studies the method of auto balancing bridge to precisely measure inductance L, capacitance C, resistance R(namely LCR)by measuring the high and low terminal vector voltages.
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