《工程机械英文技术词汇》检索：synchroniz... ... synthetic；合成的，综合的 synthetic base stock；合成的[人造的]基本原料 synthetic fiber；人造纤维 ...
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乙烷、丙烷是裂解制乙烯的原料，后者是有机合成的基本原料。
Pyrolysis of ethane and propane will liberate ethylene, a valuable and basic material for the synthesis of organic chemicals.
用途：电石可作为有机合成的基本原料，可做为石灰氮的原料，也可产生乙炔气体，作为炼钢脱硫剂，并用于金属切割。
Usage: It is the raw material of organic synthesis and calcium Cyanamide. It can produce acetylene gas, and can be used as Deoxidizer for steel making and cut metal.
碘是机体必需的微量元素，是甲状腺合成甲状腺激素的基本原料。
Iodine is the essential microelement, and the primary material for thyroid to synthesize thyroid hormones.
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