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instar

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*['instɑ:]\nn. 龄(幼虫两次蜕皮间的虫期)\n【医】 龄[虫](幼虫两次蜕皮之间)


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英文: Objective The bioactivity of twelve novel pyridine ring derivatives of podophyllotoxin were tested against 3rd instar larvae of Culex pipiens pallens.

中文: 摘要目的研究新型吡啶类鬼臼毒素衍生物对3龄淡色库蚊幼虫的的毒杀活性。        更详细...
英文: The parasitized DBM larvae had prolonged their 4th instar duration obviously, and the later the larva had been parasitized, the longer this extended duration became.

中文: 小菜蛾幼虫被寄生后,其4龄发育历期较未被寄生的显著长,且寄生时龄期越大4龄历期延长越多。        更详细...
英文: The functional response of the first, second and third instar larvae of E. balteatus preying on Macrosiphum avenae (F.)

中文: 黑带食蚜蝇各龄幼虫对麦长管蚜Macrosiphum avenae(F.)        更详细...
英文: Examination for the expression of actin genes showed that BPH A can be found from the rd instar nymph,BPH D in nymphal stage only,and BPH B,C,E in all stages from the nd instar nymph.

中文: RT PCR检测表明 :BPH A从 龄开始到成虫期都有常量表达 ; BPH B、BPH C、BPH E从 龄开始到成虫期都有表达 ;        更详细...
英文: In laboratory condition of . 0 - . 0℃, the period of egg stage lasts an average of . - . 7 days. Development through the five nymphal instar is completed in 0. - . days. A generation lasts is 0 - 8 days and its generation mortality is . %.

中文: 在实验室 .0~.0℃的平均温度下,卵期.—.7天,若虫期0.~ .天,世代历期0~8天,世代死亡率为. %。        更详细...
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