用耐火混凝土挡渣墙可以代替挡渣铁，且费用低，使用寿命长。
Fireproof concrete not only can be taken the place of slag iron, but also the cost is lower and use life is longer.
众所周知，鬼怪只会沿着直线行走，这样弯弯曲曲的长桥就将他们挡在岸边。
The long picturesque Zig-Zag Bridge keeps evil spirits at bay. As everyone knows, evil spirits travel only in a straight line.
临床时，挡舌首先处在推杆上的纵向长凹槽中。
Clinically, the baffle tongue is firstly positioned in the lengthways long groove on the push rod.
本实用新型具有结构紧凑、使用寿命长、传动扭矩大且传动功率损失小的优点，它可以实现挡位的更换，维修率小。
The utility model has the advantages of compact structure, long service life, big driving torque and small loss of driving power and small maintenance ratio and can realize the replacement of gears.
本实用新型具有结构紧凑、使用寿命长、传动扭矩大且传动功率损失小的优点，它可以实现挡位的更换，维修率小。
The utility model has the advantages of compact structure, long service life, big driving torque and small loss of driving power and small maintenance ratio and can realize the replacement of gears.
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