On measuring the spectral linewidth by means of photographing the fringes of the F-P etalon, the influence of the instrument width on the measured results has been discussed.

本文讨论了用F-P标准具的照相法测量光谱线宽时，仪器宽度对测量结果的影响。

youdao

Therefore, Carl F. Bucherer table is not only a timer, and a precision instrument, known as "aviation computer" reputation.

因而，表不仅仅是一种计时器，而且是一台精密的仪表，素有“航空计算机”的美称。

youdao

"Some people saw them as lifesaving, and others said they were the instrument of the devil, " said Dr. John F.

WSJ: Once-doubted tourniquet seen as Boston lifesaver