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.
然后，对管道设计规范和容器设计规范中针对位移应力和二次应力的强度条件进行了讨论。
Then, the intensity limitations for the displacement stress and secondary stress used in the piping design codes and the pressure vessel design codes were discussed.
城市雨水流量是城市雨水排除管道设计的基础和依据，其标准按《室外排水设计规范》（GBJ14-87）执行；
The city rain flux is the design foundation of city rain drainage pipeline, the standard according to outdoors drainage criterion (GBJ14-87).
在管道设计的各个阶段，长输管道的总长度在设计规范中没有明确的规定。
For the total length of long distance pipeline, there is no definite stipulation in the design's stage in design standards.
在管道设计的各个阶段，长输管道的总长度在设计规范中没有明确的规定。
For the total length of long distance pipeline, there is no definite stipulation in the design's stage in design standards.
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