main是什么意思

网络释义

用法例句

The reliability of main pipeline is a comprehensive attribute consisted of several individual attributes, including fail-safety,maintainability,durability,controllability,lifetime and safety.

干线管道的可靠性是一种由若干单项属性组成的综合属性,它包括无故障性、可维修性、耐久性、工况可控性、生命力和安全性。

Research on Welding Technologies in Winter for West-East Gas Pipeline Project Ⅱ

西气东输二线干线管道冬季焊接技术

The method of design and calculation on in-line welding branch pipeline for gas transmission trunk line is introduced.

介绍了干线输气管道热连接分支管道的设计计算方法。

Research on Some Key Problems of Oil and Gas Pipeline In-Line Inspection;

油气管道在线内检测技术若干关键问题研究

Study on Some Techniques of Doubly Linked Crude Oil Transport Pipeline Leak Detection;

双线原油管道泄漏检测系统若干技术的研究

High-voltage Transmission Lines on Buried Pipelines Coupling Disturbance Study

高压输电线对埋地管道耦合干扰规律研究

Russian oil trunklines management and transportation policy for oil exports to Asia-Pacific countries

俄罗斯干线原油管道管理体制及对亚太国家出口的运输政策

a tube or pipe for enclosing electrical cables or wires.

电线、电缆的管道.

The railway line comes to the airport.

铁道干线直达飞机场.

Research of Electromagnetic Interference from Power Lines to a Nearby Underground Metallic Pipeline;

电力线路对邻近并行埋地金属管道电磁干扰影响的研究

Return air duct section. Single- or double-line ducts can be specified.

回风管道部分。可以指定单线管道或双线管道。

disconnect a water pipe from the main supply

断开水管与干线的连接

Ecosystem Stability Assessment:A Case Study in Xinjiang Arid Desert Region along the West-East Gas Pipeline Project;

施工干扰下的生态系统稳定性评价—以西气东输管道工程沿线新疆干旱荒漠区为例

A major route of transportation into which local routes flow.

干线连接各地道路的主要交通要道

A tube or duct for enclosing electric wires or cable.

线管包裹电线或电缆的管子或沟道

Distributing conduit collective drawings for telecommunication

通信电缆配线管道图集

The plumber did a clean job.

这管道工人的活儿干得干净利落。

Supply or return duct section. Single- or double-line ducts can be specified.

送风或回风管道部分。可以指定单线管道或双线管道。

Duct extension. Supply or return duct can be specified. Single- or double-line ducts can be specified.

管道延伸。可指定送风管道或回风管道。可以指定单线管道或双线管道。