Like appearance, price, as mentioned at the end into the exhaust pipe silencer and modified vertical exhaust pipe tail section.
外型一样，价格一样，分为消声排气管尾段和改装直排排气管尾段。
The vertical section of the exhaust pipe immediately following the sea water entrainment must be straight. Elbows or other changes in direction will cause the sea water to drop out of suspension.
排气管垂直部分如果要迅速带走海水则必须是直管，转弯或其他改变方向的管路将导致海水留存。
Reform the common layer house with cages to the type of vertical ventilation system. Set up exhaust pipe at two sides of house end for install larger exhaust fans.
对普通的笼养种鸡舍进行纵向通风改造，在鸡舍末端两侧墙壁设置抽风通道，用于安装大直径风机。
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