怀孕期间，猪被塞进小小的金属板条箱，小到它们甚至无法转身。
During pregnancy, pigs are stuffed into tiny metal crates so small they can't even turn around.
在混凝土墙和黑色金属板条之间的楼梯由木材和铁质踏板制成。
The stairway is composed of wood and steel treads set between a concrete wall and black metal slats.
钢筋和金属板条普遍使用，一些承包商对他们坚持的身高超过4英尺，各单位。
Rebar and metal lath are commonly used, and some contractors insist on them for all formations taller than four feet.
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