hydrofluoric什么意思解释？

Material illustrating detailed structure of graptolites has been etched from limestone by means of hydrofluoric acid.表明笔石详细构造的物质是利用氢氟酸从石灰岩中侵蚀出来.The slowness is dissolve in hydrofluoric acid and hot oil ofvitriols.缓慢溶于氢氟酸...

hydrofluoric的音标：hydrofluoric的英式发音音标为：[ˌhaɪdrəflu:'ɒrɪk]hydrofluoric的美式发音音标为：[ˌhaɪdrəflu'ɒrɪk]...

The slowness is dissolve in hydrofluoric acid and hot oil ofvitriols.缓慢溶于氢氟酸和热浓硫酸.Material illustrating detailed structure of graptolites has been etched from limestone by means of hydrofluoric acid.表明笔石详细构造的物质是利用氢氟酸从石灰岩...

抗伴白蛋白...

你知道那仅仅是近似值。That's just an approximation, you understand.上述估算结果只能是粗略的近似值.Such estimates should be considered only as crude approximations.应用至今的黑圆盘近似值虽然再现了概貌, 但不能再现更为详细的细节.The black - disk approximation used so far re...

“紧密地”的英语可以翻译为：cheek by jowl，close ...

n.闹剧，趣剧...

reck的现在完成时为：recked...

In less than two hours Cohen capitulated to virtually every demand.还不到两个小时，科恩就屈服了，接受了几乎一切要求。Motorways actually cover less than 0.1 percent of the countryside.高速公路的实际覆盖面积还不到农村地区的0.1%。Less than a half hour later he returne...

Swarms of gnats and mosquitoes pestered them. Rattlesnakes and grizzly bears were a constant threat.一群一群的蚋及蚊子不停的纠缠著他们, 而响尾蛇及灰熊则持续的威胁著他们的生命....two grizzly bear cubs.两只灰熊幼崽a grizzly unshorn beard未修剪过的胡子The increase , which...

comment的近义词/同义词有：observe, note, mention, remark, annotate, expression, tell, speech, remark, observe, note, mention, say, talk。vt.comment的近义词（注释,解释;评论）：observe, note, mention, remark。comment的近义词（其他释义）：annotate, expressio...

sentimentalize的现在进行时为：sentimentalizing...

adj.（尤指对钱）贪心的，贪婪的v.抓住( grasp的现在分词 )，了解，急忙抓住，急切（或贪婪）地抓住...

我已经写好这封信的草稿。I've made a rough draft of the letter.我知道这篇草稿需要校订。I know that this draft text will need to be edited.说一句不打草稿的话, 我认为你是对的.Speaking off the bat, I'd say you were right....

n.聚集，集成，集结，聚集体...

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“费力”的英语可以翻译为：need or use great effort，be strenuous，ado，hard sledding，strenuosity ...

shortage的近义词/同义词有：need, want, deficiency, lack, deficit, absence, drought, scarcity, famine, poverty, deficiency, contraction, dearth, lack, want, deficit, absence, need。n.shortage的近义词（缺乏）：need, want, deficiency, lack, d...