Basic principle, experiment condition, operating process, method and steps of X-ray diffraction method to determine free silica content of respirable dust in mines are introduced in this paper.
本文介绍了应用X射线衍射仪测定矿山呼吸性粉尘中游离二氧化硅含量的基本原理、实验条件以及操作过程、方法步骤等。
The basic principle of biasing magnet automatic resonance regulated Petersen Coil and its operating condition at Wuzhan substation were introduced.
介绍了偏磁式自动调谐消弧线圈装置在武汉市武展变电站运行的状况。
Good grounding condition is a basic technique measurement for the operating well of seismic apparatus.
良好的接地条件是地震台仪器设备正常工作的基本保证。
The improvement work condition and the operating mode, are reduces this kind of illness the basic method.
劳动条件和操作，是这类疾患的方法。
Presents the basic condition and requirement. Points out the necessary technique files, maintaining regulations and specific measures during operating period to realize effective management.
提出了空调水系统调试的基本条件和应达到的要求，介绍了系统科学管理应建立的技术档案、设备维修保养制度及运行维护的具体措施。
Presents the basic condition and requirement. Points out the necessary technique files, maintaining regulations and specific measures during operating period to realize effective management.
提出了空调水系统调试的基本条件和应达到的要求，介绍了系统科学管理应建立的技术档案、设备维修保养制度及运行维护的具体措施。
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