研制了一种性能优异的易切削铋黄铜来替代有毒的铅黄铜. An environmental friendly Bi - brass with cutting - free and excellent properties was developed to substitute for Pb - brass.
The barnacle and the clam are two examples of filter feeders.藤壶和蛤类是滤过觅食者的两种例子.The adhesion mechanism of barnacle , limpet, anemone, tube worm are described in this paper.主要介绍海洋生物中藤壶、帽贝 、 海葵 、 管栖蠕虫对其基材的粘附机理.The shell of a...
The company suffered a great reversal of fortunes when public taste changed.由于公众口味的改变,这个公司大倒其运.That would be a reversal of the order of host and guest.这样做就主客颠倒了.That would be reversal of the order of host and guest.这就主客颠...
We bought a two - day pass to Disneyland.我们买了可用两日的迪斯尼乐园门票.Disneyland is in Los Angeles suburb.迪斯尼游乐场在洛杉矶的近郊.They were sold at Disneyland and Walt Disney world.它们在迪斯尼乐园和沃尔特?迪斯尼世界出售....
"Anything else?" Colum asked. Kathryn shook her head wearily.“还有别的吗？”科拉姆问。凯瑟琳疲惫地摇了摇头。Colum drained the dregs from his cup.科拉姆将杯中所剩一饮而尽。The cruise control switches are conventionally mounted on the steering colum.巡游控制开关按常...
Europe had become infinitely more unstable and fragmented.欧洲已经变得相当不稳定，也越来越分化。We can also ask whether there are infinitely many primes?我们还可以问,是否有无穷多个素数?He was infinitely more assured than in his more recent parliamentary ...
有消息说一队坦克已经出动了。Word went out that a column of tanks was on its way.他们倚仗坦克和重型火炮占领了这个镇。Using tanks and heavy artillery, they seized the town.街上有装甲运兵车和坦克。There were armoured personnel carriers and tanks on the streets....