Observers have recently found in the Universe giant voids about 500,000,000 light-years across.观察员最近在宇宙中发现了直径约5亿光年的巨型空洞。Some military observers fear the US could get entangled in another war.一些军事观察家担心美国会卷入另一场战争。Internati...
她太累了，而且无比悲伤，没法谈论那场悲剧。She was too exhausted and distressed to talk about the tragedy.那笔钱带来的只有伤心、痛苦和悲剧。All that money brought nothing but sadness and misery and tragedy.这是一长串悲剧事件中最新的一件。It's the latest in a long line o...
等能量 、 等变形夯扩挤密矸石桩是一种地基加固新技术.Practical construction shows that equal energy, equal deformation tamping a.文章介绍了气动夯锤打桩的施工方法.This paper presents the construction method of pneumatic rammer piling.针对一台液压夯管锤,通过改变其供油压力,考察了其工作参数的...