heptaldehyde是什么意思？

Aim Enanthal diethyl acetal is prepared with heptaldehyde and triethyl orthoformate as raw materials.目的研究以庚醛和原甲酸三乙酯为原料制备庚醛二乙缩醛的工艺条件....

heptaldehyde的音标：heptaldehyde的英式发音音标为：[hep'tældɪhaɪd]heptaldehyde的美式发音音标为：[hep'tældɪhaɪd]...

“渐进”的拼音为：jiàn jìn...

assassin的复数形式为：assassins...

Judaism的音标：Judaism的英式发音音标为：['dʒu:deɪɪzəm]Judaism的美式发音音标为：['dʒudəɪzəm]...

n.腺肉瘤...

"I'm afraid he's ill." — "I'm sorry to hear that."“恐怕他生病了。”——“真是遗憾。”"We're all talking at the same time." — "Yeah. Sorry."“我们俩在同时讲话。”——“噢，抱歉。”This, I am sorry to say, is almost entirely wishful thinki...

elimination的音标：elimination的英式发音音标为：[ɪˌlɪmɪ'neɪʃn]elimination的美式发音音标为：[ɪˌlɪmə'neʃən]...

There was a glow on his face , wrinkled by a life time of suffering, that inspired one with a feeling of unshakable optimism.他那饱经风霜的多皱的脸上发着光彩, 使人产生一种乐观的感觉.She had a natural courtesy combined with an unshakable conviction...

v.寓言化，以寓言诠释...

test的音标：test的英式发音音标为：[test]test的美式发音音标为：[test]...

“卸垛”的英语可以翻译为：destacking ...

n.泰国人，泰国语...

他一本正经地宣称“国际政治是一场权力之争”。He grandly declared that "international politics is a struggle for power".她在英国首相官邸外发表讲话时宣称她将继续斗争下去。Speaking outside Ten Downing Street, she declared that she would fight on.部长们也能同样令人信服地宣称，反对派应该受到指责。...

Microthamnion的音标：...

“豪美”的英语可以翻译为：luxe ...

n.牙槽炎...