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- Diapause hormone (DH), which is secreted by the suboesophageal ganglion of the silkworm in pupae period, plays a key role in the process of the embryo diapause. 在蛹期由咽下神经节合成和分泌的滞育激素，在其滞育过程中起到了决定性作用。
- Primary Studies on Estteraseisoenzyme of Different Tussah Varieties in the Pupal Period 柞蚕不同品种蛹期酯酶同工酶的初步研究
- That period was a bright page in the history of Chinese literature. 那个时期是中国文学史上光辉的一页。
- Let us hope that the period of this injustice will be over soon. 让我们希望这个不公正的时期很快结束吧。
- Childhood is a period of rapid growth. 幼年是生长迅速的时期。
- The children tore the cocoon open to see if there was a pupa. 孩子们撕开蚕茧看看里面有没有蛹。
- He consulted the chronicles of the period. 他参考了这一时期的编年史。
- He had to decide within a given period. 他得在一定时间内作出决定。
- She has a detailed knowledge of this period. 她对这段时期的情况了解地相当详细。
- In that period auto sales hit a14-year low. 这时期汽车销售量达到14年来最低水平。
- Enclosed in an oval, horny case. Used of an insect pupa. 壳内的封闭在椭圆形角质壳内的。用于一虫蛹
- In this period, unemployment reaches record levels. 这段时间的失业人数又达到了创纪录水平。
- Which period of history are you studying? 你正在学哪一段历史？
- Can you tell me the time period when it was stolen? 能不能告诉我大概什么时候被偷的？
- Chaucer wrote in the late mediaeval period. 乔叟写作的时代是中世纪末。
- She'll be away for an indefinite period. 她将离开一段时间，何时回来未定。
- The larva or pupa of a mosquito. 孑孓蚊子的幼虫或蛹
- This was the most difficult period of his life. 这是他一生中最艰难的时期。
- A man one day pick up a butterfly pupa. 有一个人无意中找到一个蝴蝶蛹。
- The meeting finally came to a period. 会议终于结束了。
