The invention can ensure the correctness of the water blank value involved in absorbance calculation, thus preventing the apparatus from generating wrong test results.
能够保证参与吸光度计算的水空白值的正确性，从而避免仪器出现测试结果错误。
It fills the blank of a certain type time relay of test for the smart instrument in my air force. It has a high economic and military value.
填补了我军某型航空时间继电器智能测试仪的空白，具有较高的经济价值和军事价值。
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