theory of organic origin 石油有机成因说
organic origin of petroleum [油气] 有机生油
organic origin theory 有机成因论
organic origin gas 有机成因气
petroleum organic origin 油气有机成因
theories of organic origin 有机成因说
organic-origin oil and gas 有机成因油气
Drug-induced tics and other tics of organic origin 药物性抽搐和其他器质性原因的抽搐
Organic Peppermint Leaf Origin 有机薄荷叶产地
German chemist whose synthesis of urea from ammonium cyanate in 1828 was the first time a compound of organic origin had been prepared from inorganic material.
德国化学家。1828年，他利用氰酸铵合成了尿素，这是第一次用无机物合成有机物。
Because of the organic origin of coal, it cannot be classified as a mineral.
因为煤是有机成因的，它不能归类为矿物。
The binder is of organic origin, shows strong adhesion and widens the range of coals adaptable.
该粘结剂属有机粘结剂，粘结能力强，煤种适用范围广。
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