此外, 在水的涡凹和流程特性上的一些实验的研究水力的节流阀被介绍. Besides, some experimental researches on the cavitation and flow characteristics of water hydraulic throttles are introduced.
Well might the terrified weasels dive under the tables and spring madly up at the windows!惊恐万状的黄鼠狼,有的钻到桌底下,有的没命地跳窗户!Eagles may soar, but weasels don't get sucked into jet engines.鹰翔九天, 但是鼬鼠从不会卷入飞机引擎.Long - tail Weas...
It is better to wear out than rust out.与其懒死,不如累死.Clothing seems to wear out in no time nowadays.现在的衣服好像很快就穿破了.Machines soon wear out under rough usage.机器如果使用不仔细,很快就会磨损....
Hyperlinks can also go to newsgroups and to Gopher, Telnet, and FTP sites.超链接还可以转到新闻组或gopher 、 Telnet和FTP站点.Usenet is a collection of discussion groups, known as newsgroups, to which anybody can subscribe.全球新闻网络是由多个被称为新闻...