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Jack Truss

1、小桁架

...jack shore 千斤顶支柱jack truss 小桁架jack up rig 活动工捉台 ...

2、次要桁架

...jack tree ==> 菠萝蚕jack truss ==> 次要桁架,小桁架jack(ing) screw ==> 螺旋千斤顶 ...

3、次衍架

...一次反射束 once-reflected beam次衍架 jack truss射束 [电学] beam 未按无线电射束飞行(脱离航线) off the beam ...

jack engine truss小桁架

土木建筑工程

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