错排孔板型封头结构
staggered perforated plate header configuration
孔板型结构封头
perforated plate header configurations
原型结构构构成法
the formation of the fashion prototype
蝶阀密封结构
butterfly valve’s seal structure
阀控式密封结构
value-regulated sealed structure
开式翻车保护结构封闭装置
open rops enclosure arrangement
流道密封结构
flow path sealed structure
密封结构
seal up structure
sealing structure
seal configuration
seal design
sealing mechanism
Sealed structure
seal structure
sealing construction
sealing structures
airproof structure
leak tight structure
seal’s structure
leakproof structure
hermetically-sealed construction
Gas-and-water-tight construction
气动助推密封结构
Seal-propelled pneumatic structure
汽封结构
steam sealing constructure
gland structure
球阀密封结构
ball valve′s seal structure
三偏心密封结构
triple eccentric seat sealing system