复数： trestles

The first piece is about the tractive calculationonrailway trestle .

论文的第一篇是关于铁路栈桥列车牵引计算.

Wants to give me to relate as soon as possible , I the shina district trestle !

要的尽快给我联系吧，我在市南区栈桥这边！

Police allege that he tagged locations in the massachusetts avenue and newbury street area and the railroad trestle by the bu bridge , said department spokesman officer james kenneally .

部门发言人jameskenneally警官称，警方有证据指控他在马萨诸塞大街，牛玻璃街区以及bu大桥附近的铁道支架上涂涂画画。

For platform group connected by trestle , one of which shall have helideck , and arrangement principle and requirements of deck shall conform to related requirements in chapter 12 of the rules .

对于用栈桥连接的平台群，应在其中的一个平台上设直升机甲板，甲板的布置原则和要求应符合本《规则》第十二章的有关规定。

Feasibility study is necessary to be carried out for reform of the fire-fighting equipment of a trestle in dalian new port which had been used for 30 years .

大连新港某栈桥已使用30年，目前要进行消防设施改造，需要开展可行性研究。