1. Aiming at characteristics of frigid zone in this paper, we developed and exploited three kinds of solar-energy preservation pigpens available for frigid zone.
本文针对北方地区冬季气候寒冷、持续时间长的特点，研制和开发了三种适应高寒地区的太阳能保温猪舍。
2. The shelters of the vagrants, one by one, are some strange structures like pigpens, and each box is lived by one person.
流浪着居住的地方，是一些很奇怪的像似圈类的建筑，一格一格，正好一人一间。
3. And dragged it down to the pigpens to avert suspicion falling on him.
然后把他一路拖到猪圈来避免自己被怀疑。
4. The mortality of piglets in suckling period, diarrhea rate and average weanling weight of the 4 batches of suckling piglets in the 2 groups from 2 pigpens (2 replicates in each group) were compared.
两栋舍生产的2组4批哺乳仔猪（每组2个重复）30日龄断奶，对哺乳期内仔猪死亡率、腹泻发生率、平均断奶重进行了比较。
1. The explosion happened at a tunnel whose entrance is located in one of the pigpens, said the official.