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распорная труба
stresses
tech.
支撑管
;
间隔管
;
承压管
;
隔离套
;
隔离片
;
隔离物
;
撑管
(使两端杆件间保持一定距离的)
;
支持管
;
支撑管支撑管
;
支掉管
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