Horsehead Nebula: New stars have already formed inside part of it.马头星云: 新的?星已经在其内部形成了.Directly below Alnitak, a close inspection will reveal the Horsehead Nebula.经过仔细查看就可以发现紧挨着参宿一的下方就是马头星云.Light takes about 1500 years to...
沿湖边,一把把红色雨伞像花似的撑开.Red umbrellas blossomed out along the lake.他象朵花似的盛开而后枯萎, 象影子似的漂浮不定.Like a flower he blossoms and then withers; like a shadow he flees and never stays....
Mary was appalled by the dinginess of the house.玛丽被那肮脏的房子吓坏了.Italian manhood was appalled.意大利男人吓坏了。We are all, of course, appalled that such items are still on sale in the shops.我们当然对这些物品竟然还在商店里出售表示震惊。He felt appalled by...
Analcite mineral was found rock specimen of cretaceous system in the Ordos Basin via using micro - analysis.通过微观分析,在鄂尔多斯盆地白垩系钻孔岩样中发现方沸石类矿物.Porous analcite balls are prepared by analcite rocks andand then are used to remo...
For an initial service, a 10 megahertz-wide band of frequencies will be needed.初始服务需要10兆赫宽的频带。If the frequencies are low, this approach cannot be used.若频率很低时, 这种方法就不能使用.The electromagnetic spectrum covers an enormous ran...