Toxaphene, an organic chloride insecticide possesses a long residual period.
毒杀芬为有机氯杀虫剂的一种,残效期长。
For the interference of the synchronous reaction substances, we may inquire the patients situation, avoid the drugs residual period, or standard addition method to decrease the interference.
同步反应干扰物的影响可询问病情、避开药物残留期、血清加标回收的办法予以消除。
This fallout material decays over a long period of time, and is the main source of residual nuclear radiation.
尘降物需要很长的时间才会衰减,这是核辐射残留的主要来源。
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