Means followed by the same letter are not significantly different at the 5% level by Duncan's multiple range test. 经邓肯法多重比较检验，平均数后的字母相同者由没有达到5%25的差异显著水准。
N o te: D ifferent letters w ith in the sam e co lum n indicate significant differences by L SD range test at 5% level. 注:同一列数字后带不同小写字母者表示存在5%25的显著性差异。
Note: Within column the numbers followed by the same letter are not significantly different( Duncan's multiple range test, at5% level). The same below. 注：数字后面有相同小写字母者，表示差异不显著（肯氏多重比较
An arbitrary waveform generator(AWG)was designed for application on testing the following instruments of optical-electrical target in the environment of shooting range testing. 设计并实现了靶场测试环境中的用于检验光电靶后续设备的任意波形发生器。
Based on the principle of interior ballistics, a bore pressure simulater is designed to be used in receiving test of bottom caps instead of the practical firing range test. 本文简要说明了根据内弹道学原理设计的代替实弹道验收底火用的膛压模拟器.