移动牵引变电所的英文：
movable traction substation

movable是什么意思：
n. 家具,动产
a. 可动的,动产的,不定的

movable vice jaw
活动钳口

This limitation was overcome with the invention of movable type.
随着活字的发明，这一障碍得取了克服。

A medieval light helmet with a neck guard and movable visor.
头盔中世纪有护颈和活动护面的轻便头盔

traction是什么意思：
n. 牵引；附着摩擦力；牵引力

Spikes provide greater traction.
钉鞋可提供更大的附着摩擦力。

Is there an alternative to traction for a broken leg?
对于腿部骨折有什么方法替代牵引治疗吗？

interfacial tractions at the broken ends will produce delamination
断头处的界面引力将引起分层。

substation是什么意思：
n. 分局,分台,分所

The development of automatic reclosing made the unattended substation practical.
自动重合闸的研制使无人值班变电站得以实现。

Substation transformer load balancing and load monitoring
变电站变压器负荷平衡和负荷监测

Parts of the area loads formerly carried by adjacent substations.
新安装变电站就可承担原先要由邻近变电站来承担的负荷。