The BOD test is essentially a bioassay procedure.BOD试验实际上是一项生物测定方法.The bioassay of freshwater sediment toxicity is described.描述了淡水沉积物毒性的生物测试方法.The field bioassay of 4 trunk injection insecticides ( 14 % Imidacloprid + DD...
月相包括新月和满月.The phases of the moon include the new and the full moon.对史前猎人们而言,月相的更迭就如同心脏跳动一般准确无误.To prehistoric hunters the moon overhead was as unerring as a heartbeat.这个钟有月相显示月亮的不同阶段.The clock had a moon that showed vari...