Self focusing rod is a kind of new optical material.
自聚焦棒是一种新型的光学材料。
For metal material, give the form of the material, e. g. steel coil, rod.
对于金属材料，请给出材料形态，比如金属板材，金属线材。
The QQ-88 super screw rod cleansing agent is one kind of macromolecular weight plastified material.
QQ-88超级螺杆清洗剂是一种高分子量的塑化物质。
Material and process of engine connecting rod are discussed.
简述发动机连杆的材料与加工技术。
Rod valve is usual op. en and material is in flow condition.
棒条闸门一般为常开型，物料处流通状态。
Rod valve is usual op. en and material is in flow condition.
棒条闸门一般为常开型，物料处流通状态。
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