The splitting Mechanism, charge preparation and testing result of the loaded constitution of directional splitting in rock blasting are introduced.
介绍了一种岩石爆破定向破裂装药结构的破岩原理、制作方法及试验效果。
A simple optical directional scattering method and optical directional scattering film are described, and the making and testing results of this film are given.
论述一种简单的光学定向散射方法和用此方法做成的光学定向散射膜片，并给出此种膜片的制作试验结果。
This paper introduces the features of a computer-controlled testing device for pneumatic directional valve and pneumatic system tests and measurements.
介绍一种采用计算机控制与检测气动换向阀试验台的特点和测试系统设计。
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