Vertical double draft bull block.
立式双层鼓轮
domed bulkhead double bottom doubling plate draft molded
球面舱壁双层底复板型吃水
Model Establishment and Simulation of Balanced Draft Air and Gas System for Circulating Double Fluidized Bed
循环双流化床锅炉平衡通风风烟系统建模与仿真
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