光是由波长极短的电磁波组成,这一事实看来已经证据确凿.The evidence seemed inescapable that light consisted of electromagnetic waves of extremely short wavelength.她打了了极短的招呼.She gives a ultra - brief greeting....
The gas , which is sulphur - free , contains 89 - 99 % methane, up to 6 % ethane, and 3 % propane.天然气不含硫, 含甲烷88-99%, 乙烷6%和丙烷3%.The cloud might be snowing ethane snowflakes into methane lakes below.云层可能正在向下面的甲烷湖飘落乙烷雪.BA 1...
He keeps forgetting the words and the song is a sprawling mess.他老是忘词，歌被唱得乱七八糟。The sprawling city contained some 4m people.这个不断扩张的城市容纳了约400万人口。He was sprawling in an armchair in front of the TV.他伸开手脚坐在电视机前的一张扶手椅上。...
I had tuberculosis and was told I'd be in the sanatorium for two years.我得了肺结核，被告知要在疗养院呆两年。She is now at Lu - shan sanatorium and endeavouring to pull round.她目前在庐山休养所,力图把身体养好.I had TB and spent several months in a sa...
There is a risk of transmission of the virus between hypodermic users.接受皮下注射者有相互传染病毒的可能.This is a medical supplies company that produces disposable hypodermic syringes.这是一家生产多用途皮下注射器的药材公司.Is the move factor that inject u...