风管设计和安装必须符合国家暖通空调管道设计规范。
The air duct must be designed and installed in accordance with national design code for HVAC duct.
将新公式的计算结果与有关油气管道设计规范推荐公式的计算结果进行了比较。
The new calculation results are compared with those based on the recommended formulae in the oil-and-gas pipeline design specifications.
管子材料的许用应力可按GB 50316《工业金属管道设计规范》中的数据选用。
The allowable stress of the pipe material shall be chosen from the data of GB 50316 Design Specification for Industrial Metal Piping.
应用推荐