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step rail：斜切轨条

step method 逐步法 ,阶段法 | step rail 斜切轨条 | step resistance type wave guage 阶段抵抗波浪计

step rail：阶段轨条

阶段活塞 step piston | 阶段轨条 step rail | 分段螺丝攻 step tap

step rail：附台階鋼軌

8293 step cutting 台階形路塹 | 8294 step rail 附台階鋼軌 | 8295 Step Recess 踏步凹窩

step rail WESTBANK：斜切轨条

step method WESTBANK 逐步法 ,阶段法 | step rail WESTBANK 斜切轨条 | step resistance type wave guage WESTBANK 阶段抵抗波浪计

step roller rail：梯级滚轮导靴

step roller 梯级滚轮 | step roller rail 梯级滚轮导靴 | step roller track 梯级导轨

step joint：阶式接头 ,齿式接合

step iteration method 逐近法 | step joint 阶式接头 ,齿式接合 | step ladder 梯

step joint：阶式接头

"分阶曝气法","Step aerarion" | "阶式接头","Step joint" | "斜切轨条","Step rail"

step joint：阶级搭口接合

分段淬火 step hardening | 阶级搭口接合 step joint | 四脚梯 step ladder

step joint：齿式接合,台阶状接合,槽齿联结

step jaw ==> 阶梯形卡爪 | step joint ==> 齿式接合,台阶状接合,槽齿联结 | step junction ==> 突变结,阶跃结=>階段接合

step joint WESTBANK：阶式接头 ,齿式接合

step iteration method WESTBANK 逐近法 | step joint WESTBANK 阶式接头 ,齿式接合 | step ladder WESTBANK 梯

phenol red：酚红,苯酚磺酞

phenol reagent 酚试剂 | phenol red 酚红,苯酚磺酞 | phenol red test 酚红排泌试验

accessory equipment：附件

accessory equipment 辅助设备 | accessory equipment 附件 | accessory part 附件