large diameter pipeline的意思|示意

Main points in design and construction concerning the large diameter nodular cast iron pipeline are described by means of Taiyuan water supply engineering from the Huanghe River.

介绍了大口径球墨铸铁管的主要性能特点，并通过黄河水源太原市城市给水工程，就大口径球墨铸铁管在设计与施工中的要点进行了论。

For small diameter pipeline it is more difficult than for large diameter pipeline.

对于小管径管道，其通球难度要大于大管径管道。

Shaanxi-Beijing pipeline is the first long-distance, large-diameter, high-pressure natural gas pipeline in China.

陕京管道是我国第一条长距离、大口径的高压天然气管道。

Internal coating used in high pressure, large diameter and long distance gas pipeline has two main functions, one of them is anti corrosion and the other is drag reduction.

高压、大口径、长输天然气管道采用内涂层主要具有两大功能，一是防腐蚀，二是减阻。

This welding process, with continuous welding wire feeding, fast deposit speed and quality welding pass, is especially suitable for long distance pipeline with large diameter and thick wall.

全位置自动焊接技术的特点是，焊丝可以连续送进，焊丝熔敷速度快，焊接质量较高，尤其适用于大口径、厚壁管的焊接。

There is obvious advantage of the ultrasonic flow meter for the metering on the large diameter gas pipeline.

超声波流量计在大管径天然气计量中具有突出的优点。