The paper describes the measuring and the calculating methods of the wave banddetectivity and the test results of IR detectors.
描述了波段探测率的测试方法和实验计算，给出了探测器的测试和计算结果。
Measuring methods and calculating formulae for the initial tension of V-belt drives are introduced in this paper.
本文介绍了V带传动初拉力的测量方法及计算公式。
The properties of fissure structure in a single fractured rock mass are described in the paper. The calculating and measuring methods of equivalent fissure openness are put forward.
该文描述了单裂隙岩体的裂隙面结构性状，提出了等效裂隙开度的计算方法和测量方法。
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