碟形卫星天线的定向性非常强。Dish aerials are highly directional.雷最近编制了定向性量表, 它可以较好地预言支配行为.More recently Ray developed the Directiveness Scale, which is well able to predict dominant behaviour.采用了超声的方法来切短露头于AAO范本的纳米碳管,增加纳米碳管膜的定向性.Sonic...
It never rusts or tarnishes...它从不生锈，也不会失去光泽。It never rusts or tarnishes.它从不生锈，也不会失去光泽。This metal tarnishes easily.这种金属易变色.Brass tarnishes quickly in wet weather.天气潮湿时黄铜很快会失去光泽....
At the time many people ridiculed Isaacs, but scientists are now taking the idea seriously.当时,很多人讥笑萨克而现在科学家们正在认真地接受这一主张.In the past he has pooh-poohed suggestions that he might succeed Isaacs.过去他对自己会接替艾萨克斯之说嗤之以鼻。...the k...
The farmer milks the cows twice a day.那农夫一天挤两次母牛的奶.Sales of cleansing milks, creams, and gels have doubled over the past decade.在过去10年中，洁面乳、面霜以及发胶的销售已经增长了一倍。He milks the cow every day.他每天挤牛奶....
结合潘二矿储煤仓工程实例, 详细介绍了筒仓滑模施工技术.Combining engineering example with coal storage bunker, introduced slide form construction technology in detail.井口受煤仓的有效容积影响因素很多,计算复杂.There are many factors influenced to the effective volume ...
" We are in trouble, " he said gloomily.“ 我们遇上了麻烦, ” 他沮丧地说道.He reached gloomily into one of his trees and picked handfuls of fruit.他闷闷不乐地把手伸到一棵树上,摘下一把水果来.Brazilians look gloomily forward to a New Year that even the presi...