ratio n. (pl. ratios) 1.比,比率,比值;比例;系数。 2.【经济学】复本位制中金银的法定比价。 the ratio 3:2 (读作 the ratio of three to two )3对2之比。 arithmetical ratio 公差,算术比。 direct ratio 正比。 inverse [reciprocal] ratio反比。 current ratio 电流比,电流变换系数。 nutritive ratio 营养率。 vt. 1.用比例方式表达;求出…的比值;使…成比例。 2.将(相片)按比例放大或缩小。
Lasers and laser - related equipment - test methods for laser beam widths , divergence angles and beam propagation ratios - general astigmatic beams 激光和激光相关设备.激光束宽度发散角和束扩散率的试验方法.一般象散束
Lasers and laser - related equipment - test methods for laser beam widths , divergence angle and beam propagation ratios - part 2 : general astigmatic beams 激光和激光相关设备.激光束宽度发散角和束扩散率的试验方法.第2部分:一般像散束
Lasers and laser - related equipment - test methods for laser beam widths , divergence angles and beam propagation ratios - stigmatic and simple astigmatic beams 激光和激光相关设备.激光束宽度发散角和束扩散率的试验方法.无象散和简单象散束
Lasers and laser - related equipment - test methods for laser beam widths , divergence angle and beam propagation ratios - part 1 : stigmatic and simple astigmatic beams 激光和激光相关设备.激光束宽度发散角和束扩散率的试验方法.第1部分:无象散和简单象散束