JUS H B8 706-1980 Anafym of technical l l l-trichloro-2 2-di-(p-chlorophenyl)ethane Determinotion of chloral hydrate content《工业用l，l，l－三氯 2，2－二（p 氯苯基）乙烷 水合氯醛含量的测定》.pdf

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