The mass fraction of n - butene in mixed C 4 from catalytic cracking after etherized was approximately 40 %.醚化后的催化裂化混合C4中含有质量分数约为40%的正丁烯,是生产丙烯的优质原料....
A frequency of one million megahertz, 10000? 200 Hz.一百万兆赫(兹)频率, 即10000? 200赫(兹)....UHF frequencies of around 900 megahertz.大约900兆赫的超高频率The bandwidth ( megahertz ) and spectrum position of the signal arising from televisi...
It is not always reliable to argue by analogy.靠类推法论证并不总是可靠的.My theory applies to you and by analogy to others like you.我的理论适用于你,照此类推,也适用于像你这样的其他人.The author explained the movement of light by analogy with that of water.作...
珊瑚礁是由许多相同的微生物不断堆积而成。A coral reef is built by the accretion of tiny, identical organisms.珊瑚礁上的多种生命形式the multifarious life forms in the coral reef大浪不断冲击着那珊瑚礁.Big waves hammered at the coral reef....
To make matters worse, antimicrobials have been introduced into hand creams, household cleansers, livestock feed.更糟糕的是, 抗微生物药物已被掺合进擦手霜 、 家庭清洁剂和牲畜饲料中.Cream cleansers are totally off limits for oily skin.油性皮肤不能使用洁面霜。Women ...
He had the temerity to ask for higher wages after only a day's work.只工作了一天,他就蛮不讲理地要求增加工资.He has even had the temerity to invoke the names of Martin Luther King Jr and Malcolm X in defence of his actions.他竟然敢搬出马丁·路德·...
小公鸡不恋笼.Young cocks love no coops.开跑后仅两三圈, 小公鸡已领先半圈.Leave after running only 3 two, the cockerel already preceded half rounds.场主怒火中烧, 举起枪一枪便结果了小公鸡.Advocate aflame with passion, raise a gun one gun result cockerel....