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电梯安全装置
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电梯安全装置
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lift safety device
电梯安全装置
电梯系统中为了保护运行安全的机械和电气设备。
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natural bitumen
natural boundary
natural boundary condition
natural boundary element method
natural boundary homomorphism
natural boundary integral method
natural boundary integral operator
natural boundary of analyticity
natural boundary reduction
natural bridge
natural broadening
natural bundle
natural bypass
natural capital
natural cause theory
natural cheese
natural circulation
natural circulation boiler start-up
natural circulation steam generator
natural class
natural coke
natural colloid
natural color
natural color cocoon
natural color silk
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