acetal什么意思？

The necessary material of 2 - ( 2 - methoethyl ) acetaldehyde diethyl acetal was synthesized in addition.另外还合成了必需原料 2- ( 2- 甲氧基乙氧基 ) 乙醛二乙醇缩醛.Butyraldehyde 1,2 propanediol acetal was synthesized by using stannous chloride...

acetal的音标：acetal的英式发音音标为：['æsɪtæl]acetal的美式发音音标为：['æsəˌtæl]...

Butyraldehyde 1,2 proparediol acetal was synthesized by using stannous chloride as catalyst.以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.Butyraldehyde 1,2 propanediol acetal was synthesized by using stannous chloride as catalyst.以非质子...

n.砷镍矿...

glissette的音标：glissette的英式发音音标为：[ɡ'lɪset]glissette的美式发音音标为：[ɡ'lɪset]...

“服装部”的英语可以翻译为：clothing department ...

The Negro minstrel is touring the country.那个黑人歌舞团正在全国各地巡回演出.On a bench in the obscurity sat the negro Jess.而那个叫杰斯的黑人就坐在阴暗处的长凳上.It's impolite to call the black people Negro.称呼黑人为Negro是不礼貌的。I know the Negro race has a...

n.原来似乎坚决抱独身主义而新近结婚的男子...

上早操的时候,那指挥官的口笛振鸣得也远了,和窗外树丛中的人家起着回应.The sports teacher's whistle in the distance echoed through the crowd of girls among the trees....

transfigures的音标：...

印地安纳州的种族偏见的历史在 梅森——迪克森 线以北是无出其右的.Indiana had a history of bigotry unequaled north of the Mason - Dixon line.印地安纳州的种族偏见的历史在梅森 ― ―迪克森线以北是无出其右的.Indiana had a history of racial bigotry unequaled north of the Mason - Dixon li...

十六醇...

Most laboratory animals are quite insensitive to enterotoxin.大多数实验动物对肠毒素极不敏感.Present another paper on cholera enterotoxin at the IAMS on 3 September in Tokyo.九月三日在东京举行的国际微生物首次多边会议上宣读另一篇有关霍乱病毒的论文.Staphylococcus aureus ent...

“傻大个”的英语可以翻译为：looby，lubber ...

（使）停驶，使用于…，使（某人）苏醒，使达到…...

metastasy的音标：metastasy的英式发音音标为：[me'tətæsɪ]metastasy的美式发音音标为：[me'tətæsɪ]...

该公司用泡沫塑料包住牌匾，以防止其在运输过程中受损。The company provides a styrofoam cushion to protect the tablets during shipping.布的四角包住那个洞.The ends of the cloth lap around the hole.浓雾包住了群山.The hills were enveloped in dense fog....

It was smoothed down by rubbing with a burnisher.它通过磨光器反复地擦变得光滑....