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containing
封密系统
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三级气密封系统
three-stage gas sealing system
地内密封地热系统
geopressurized geothermal system
密封系统
sealed system
油密封系统
seal oil system
液体多层料密封系统
multilayered liquid containment system
自密封气压管路系统
self-sealing pneumatic tube system
转子密封系统
rotor sealing system
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