残效期的英文

residual life

residual period

• 残:    incomplete; defici ...
• 效:    effect; efficiency ...
• 期:    designated time

例句与用法

1. The results showed that 89 . 58 % control effect could be achieved with 35 % endosulfan ec exhibited slight phytotoxicity ; 40 % omethoate ec behaved longer residual duration ; insecticide resistance of 2 . 5 % cyhalothrin ec was reported , and 48 % chlorpyrifos ec diluted by 10 times was recommended therefore
   结果表明： 48 %乐斯本乳油稀释10倍时防效可达89 . 58 % ， 35 %赛单乳油有轻微药害， 40 %氧化乐果乳油残效期长，建议防治中使用10倍的48 %乐斯本乳油。