龄期是指昆虫幼虫在连续两次蜕皮之间所经历的时间。
学龄期 School age ; School period ; school years
龄期强度关系 age strength relation
换地权益龄期 age of entitlement
学龄期儿童 Children of School Age ; school-aged children ; school age child
混凝土龄期 age of concrete ; concrete age
生理龄期 Physiological age
帐龄期间 aging period
育龄期 childbearing age
早龄期 early-age
在一个龄期内 during a stadium
The results showed that natural elimination mainly took place at younger period, especially at first instar.
调查结果表明,在自然状态下,野蚕的自然淘汰主要发生在小蚕期,尤其是一龄期。
参考来源 - 野桑蚕抗性的研究Early-age sawcutting, as one form of crack induction, has been applied to concrete pavement surfaces at specific contraction locations.
早龄期时在混凝土表面切缝，是引导裂缝规则产生的主要方法。
参考来源 - 水泥混凝土路面切缝机理研究In different instars, the morphology and structure of ovary were different. When the parthenogenetic female of D. carinata reached the fifth instar, the ovary had developed maturely and the female was ready to enter the first adult stage.
隆线孤雌的卵巢发育要经历五个幼龄期 ,不同的龄期 ,卵巢的形态结构不同。
参考来源 - 隆线溞孤雌溞生殖系统的组织学·2,447,543篇论文数据，部分数据来源于NoteExpress
学龄期孩子会担心自己是否能在餐桌礼仪上做得很好，所以家长们还应该多教导他们。
School-age children are anxious to do the right thing so they may need some advanced lessons in table manners.
即使你没有学龄期的孩子，这个建议仍然有效。
This advice applies even if you don't have school-age children.
不过，动物真的会利用它们的大脑袋和漫长的幼龄期来学习吗？
But do animals actually use their big brains and long childhoods to learn?
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