B-A type double - cone directive stream detector is projected and made. An experimental system is established and the directivity of the detector has been tested.
研制了一台B- A型双圆锥定向流探测器，并建立了一个实验系统对定向流探测器的准直性进行了测试。
B-A type double - cone directive stream detector is projected and made. An experimental system is established and the directivity of the detector has been tested.
研制了一台B- A型双圆锥定向流探测器，并建立了一个实验系统对定向流探测器的准直性进行了测试。
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