... main stream 主流 main structural member主结构构件 main-supply 供电干线，电源，交流的，主供水管 ...
双语例句
1
The main oil-bearing horizons of the No. 2 structural belt of the Nanpu subbasin are sandstone of the First Member of the Paleogene Dongying Formation and Ordovician limestone.
南堡凹陷南堡2号构造带主要含油层段为古近系东营组东一段砂岩及奥陶系灰岩。
2
And the main kind of them is the structural bed, which consists of litho group, litho formation and litho member in the classification system.
构造岩层是其中主要类别，其单位等级体制可划分为岩群、岩组与岩段。
3
The main difficulty in analysis of unbonded prestressed concrete beam bridge is the coupling between the sectional strength of member and the whole structural deformation of member.