In this paper resolving power of diffraction gratings and its measuring methods in width at half height of central peak are described.
本文叙述了平面衍射光栅分辨率及其半宽度测量法。
Combination use of the oblique Shockwave induced by the leading edge of the half height strut and hydrogen pilot flame can also ignite the kerosene and hold the combustion stably.
利用半高度后掠支板和氢气引导火焰相结合的点火方式,也可以实现煤油的可靠点火和稳定燃烧。
Another study polled half of all the Fortune 500 companies about the height of their CEOs.
另一项研究调查的是财富500强中250家公司的总裁身高。
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