厂商须提供机械的、电力的、网络通讯和环境的规范。
Manufacturer shall provide mechanical, electrical, network communication and environmental specifications.
提供机械通风，将气体浓度控制在允许的逸出量以下。
Provide mechanical ventilation to maintain vapor concentrations below permissible exposure levels.
除了提供机械强度或结构强度外，套管螺纹还必须与相关的压力和流体相适应。
In addition to providing mechanical or structural strength, the casing thread must be compatible with the pressures and fluids associated with the application.
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