1) steel truss girder
常备式钢拱架
1.
On one hand, compared with bailey truss girder and double-level Six-Four type military girder, steel truss girder has the advantage that it is economic as it uses less steel, the tripod rest is further, the process of assembly and demolish is convenience and consumes less time.
底那河大桥是一座净跨120米的钢筋混凝土整体式箱型拱桥，采用悬拼类似于六四军用梁的常备式钢拱架并在其上现浇拱圈的施工方法。
2) ticket ready for use
常备车票
3) standing army
常备军
1.
There is no standing army and the number of king s safe-keeping is small.
在中古英格兰,国家军事力量主要由骑士性质的军队组成,此外还有雇佣军与民团,中古英国没有形成常备军体制,国王的私人卫队也很少,这对以后英国社会的发展产生了重要的影响。
4) stock phrases
常备片语
5) desk reagent
常备试剂
6) staple stock list
常备货物一览表
补充资料：常备
1.经常准备。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。