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In this paper, a new method for dynamic measurement of engineexhaust using TOFMS(Time-of-Flight Mass Spectrometer)is presented, and a high-speed data acquisition system is designed.
文摘：本文介绍了利用飞行时间质谱仪对发动机发动过程中的排气成分进行动态检测的方法以及为此开发的高速数据采集系统。
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At the beginning of the book, a pristine Constitution hangs on a wall; by book's end, it is full of crayoned redactions.
本。拉登。本书一开始，一本质朴的宪法悬在墙上；书的末尾，还画满了蜡笔画。
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It is claimed that grain boundaries intersecting the surface of transverse specimen facilitate short cut diffusion of Al atoms in the substrate to assist Al2O3 nucleation and growth on the surface.
这与横切样品表面存在品界，有利于铝的短路扩散有关。
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