isoamyl怎么读？

Isoamyl butyrate was synthesized by using potassium bisulfate as the catalyst.以硫酸氢钾为催化剂,正丁酸和异戊醇为原料合成了正丁酸异戊酯.Isoamyl butyrate was synthesized by using ceric sulfate as the catalyst.以硫酸高铈为催化剂,正丁酸和异戊醇为原料合成了正丁酸异戊酯.Isoamyl bu...

The progresses in the synthesis study of isoamyl isovalerate at home and abroad were reviewed.综述了国内外对异戊酸异戊酯的合成研究的进展情况.Isoamyl butyrate was synthesized by using potassium bisulfate as the catalyst.以硫酸氢钾为催化剂,正丁酸和异戊醇为原料合成了正...

n.异戊基...

invitation的近义词/同义词有：call, challenge, summons, flirtation, tender, attraction, enticement, offer, lure, bait, draw, hint, temptation, suggestion, magnetism, allurement, tantalization, overture, proffer, obtestation, plea,...

displease的一般过去时为：displeased...

n.黑（色）素体...

“阶梯”的拼音为：jiē tī...

grammes的音标：...

Weill的音标：...

“高碘血”的英语可以翻译为：[医] hyperiodemia ...

He has not yet announced whether he will stand in the election.他尚未宣布自己是否会参选。A handful of onlookers stand in the field watching.少数几个旁观者站在现场观看。We had to stand in the snow every morning for roll call.我们每天早上都得站在雪地里等着点名。...

They need no running fights with large, fierce rats or tussles with grown rabbits.它们不必奔跑着与大又凶的老鼠搏斗了,也不必跟大兔子扭斗了....

She has been granted permanent residency in Britain.她获准在英国永久居住。to change residency改变住所He applied for British residency...他申请了在英国的居住权。Foreigners found without residency cards can be fined or imprisoned.没有绿卡的外国人一经发现就会被罚款或监...

vt.英国化...

a kilometre and a half of bitumen一公里半的柏油路面My home is half a kilometre away from here.我家离这儿有半公里.Now China ranks the antecedency in the world in the using efficiency and amount per kilometre.目前中国铁路使用效率及平均每公里货运量,均位居世界前列.Mor...

In Anekal farmers encroach on the forest, disrupting a migratory route.在Anekal农民 们侵占森林, 阻断了大象迁徙的线路.It has been pouring in Delhi almost non stop for the past three days, disrupting normal life...德里市在过去的3天里一直在下着倾盆大雨，几乎没有停过...

这个消息用电报机发出.Send the message on the telegraph.电传打字电报机滴嗒滴嗒地打出电报来.The teletype is ticking out messages.打字电报机实际上是一种在电报电路上传送打印信息的机器.A teleprinter is really a machine which sends a typewriter message over a telegraph circuit....

commend的近义词/同义词有：trust, commit, assign, compliment, approve, praise, commit, trust, favor, approve, sympathize, compliment, propose, assign, praise, salute, congratulate, laud。vt.commend的近义词（把...委托）：trust, commit, assign...