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packing box seal
释义
packing box seal
Encyclopedia
工学
往复密封
释
packing box seal
填料密封
通过填料阻塞泄漏通路实现往复或旋转相对运动界面的密封。又称压紧填料密封。
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special Riccati equation
special rice
special ring
special risk insurance
special road
special rock/soil survey
special rule of detachment
Special Rules on the Labor Protection of Female Employees
special safeguard provisions
special safety evaluation
special scheme of construction safety
special school
special school for mentally retarded children
special semimartingale
special sense
special separation membrane
special sequence
special service time
special shaft-sinking method
special-shaped book
special single riser drainage system
special site field
special-skilled acupuncture technique
special soil
special soil foundation
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更新时间:2026/6/27 22:27:23