查询词典 instars

Analysis and evaluation of nutritional components of Oxya chinensis Thunberg in different instars

通过对金纹细蛾幼虫脱皮和头壳宽度的测量，测得幼虫龄期为5龄。

Result Under both rearing conditions, the food consumption of the overwintering and first generation larva increased with instars.

结果］在2种饲养条件下，无论是第一代幼虫还是越冬幼虫，其取食量均随着龄期的增加而增加。

The spatial distribution patterns of the larva of Spodoptera litura on the different crops were studied. The results showed that the larvae in early instars were highly aggregate.

种群的空间图式是指某一种群的个体在其生存空间的分布形式，是种群的重要属性之一，由物种的生物学特性和环境条件所决定。

Both the larval head capsules width and the length of the body can be the standard of instars separation.

认为苹果蠹蛾幼虫头壳宽度和幼虫体长都可作为分龄标准。

Insect larval instars, the number of individuals at each stage (the 'stage structure') may provide a useful description of the population.

当种群经历离散和发育时期时，每一时期个体的数目可以对种群进行有效的描述。

Supplementary reproductives were generated from nymphs or workers of different instars.

白蚁起源于白垩纪，至今有2亿多年的历史，是世界上最古老的社会性昆虫。

The spatial distribution patterns of the larva of Spodoptera litura on the different crops were studied. The results showed that the larvae in early instars were highly aggregate.

斜纹夜蛾幼虫在不同作物上的空间分布特征研究表明：幼虫在低龄阶段高度聚集，聚集的原因是成虫产卵的行为造成。

The highest mortality occurred at the boring stage of young instars larvae, especially in early stage of 1st and 2nd instar larva.

经存活曲线分析得知舞毒蛾种群的个体死亡主要发生在幼龄幼虫期，特别是对1，2龄幼虫的致死能力更为明显。

After treatment with chlorfluazuron to the larvae, the activities of POD in the larvae of three instars were all higher than the control, while the activities of POD in the second and third instar were only 65.0% and 99.2% of those in the control.

抑太保处理后，过氧化物酶活力除2龄幼虫在处理后5 h下降，仅为对照的65.0%，3龄幼虫在处理后1 h为对照的99.2%外，3个虫龄幼虫的POD活力均高于对照。H2O2由0增加至0.1 mL，POD活力呈线性关系上升。

Aggregate intensity of larvae in late instars decreased and larvae dispersed gradually. The cause of dispersion was because of the effect factor of density.

在白菜上，幼虫在 4龄前为聚集分布，5龄以后为均匀分布，棉花和向日葵上各龄幼虫均为聚集分布。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。