用摄食监测法对中华绒螯蟹溞状幼体的PNR研究
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通过运用二种回归方法和六种聚集度指标对黑角直缘跳甲幼虫的空间格局和抽样技术进行了研究。
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Methods At different rice development stage, 1 000 ml dips were used to collect mosquito larvae.
方法在水稻的不同生长期,采用容积为1000ml幼虫勺进行调查;
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The parasiticidal effects of superhigh pressure were studied for Trichinella Spiralis larvae.
应用超高压技术,对旋毛虫肌幼虫进行杀灭作用研究。
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Study on Parasiticidal Effects of Superhigh Pressure for Trichinella Spiralis Larvae
超高压对旋毛虫肌幼虫杀灭作用研究
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The discovery and research in body wall invaginated tissue of Bombyx mori Larvae Wu
家蚕幼虫体壁内陷体的发现与研究
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海生甲壳动物,有羽毛状捕食的附肢;幼体独立游水;成体形成硬壳附着生活于水下。小型淡水甲壳动物,长有盾牌状甲壳。
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Piles of net traps wait on boats for putting into water trap the crab larvae.
渔民把层层叠叠的渔网放在渔船上,准备放到水中捕捞蟹苗.
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They are incapable of making their own nests, or of feeding their own larvae.
他们不会造自己的窝, 也不会抚育自己的幼虫.
词典精选例句
Some larvae of the first generation and most of the second generation were diapause.
第一代部分幼虫和第二代大部分幼虫滞育.
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14日龄第Ⅰ组黄颡鱼体长相对增长率显著低于第Ⅳ组(P<0.05);
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But LGR of 21-day-old larvae among all groups had no significant difference ( P0.05).
21日龄各组间黄颡鱼体长相对增长率差异不显著(P>0.05)。
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结果表明二者的食道腺的结构以及在不同时期活性的变化是一致的:幼虫期亚腹食道腺发达,内有大量的分泌颗粒;
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若在最适盐度 ( 12.4‰ ) 中培育, 浮游幼虫期最适水温为25℃,稚贝最适水温为21℃.
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Noctuid moth larvae that travel in multitudes destroying esp. grass and grain.
夜蛾的幼虫,成大群行动,特别破坏草地和谷类。
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