商业上采用的以镍作催化剂的氢化有两种.Commercially two main types of hydrogenations are carried out with Nickel catalyst.抑制剂和促进剂能影响氢化速率.Inhibitors and promoters may affect the rate of oxxidution.用六氢化邻苯二酸酐加入到邻苯二酸酐中,可使其放热反应减慢.Exothermic reac...
他们从紧急出口逃脱，并报了警。They escaped through an emergency exit and called the police.首相已召集议会召开紧急会议。The Prime Minister has called an emergency meeting of parliament.昨天他的飞机在沙尘暴中紧急降落。His plane made a crash-landing during a sandstorm...
He was punished for his impertinence.他因为冒失无礼受到惩罚。Now, we won't submit to impertinence from these pimply, tipsy virgins.现在我们决不能忍受这群长着脓包 、 喝醉了的小兔崽子们的无礼举动.All the critical twiddle - twaddle about style and form is mere...
The instruments are mainly zhuiqin, two - string Chinese violin, dulcimer, lute and others.伴奏乐器中, 主奏乐器为坠琴,另有二胡 、 扬琴 、 琵琶等乐器.Dulcimer usually appears in a happy music.扬琴一般用来弹奏轻快的曲子.Stringed instruments musical instrument ...
But the bacteria can also damage the cell cell hydrops, membrane structure destruction and cell necrosis.研究结果还表明,病菌也会对免疫器官产生损害,可造成细胞水肿, 膜性结构破坏及细胞坏死.It'should be differentiated among endolymphatic hydrops , perilymph...