... circular thread chaser圆形螺纹梳刀 circular washer圆垫圈 circularity圆度 ...
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flat circular washer 平垫圈
circular r washer 圆垫圈
spring-washer s circular cutter 弹簧垫圈园切刀
spring-washer ' s circular cutter 弹簧垫圈园切刀
·2,447,543篇论文数据，部分数据来源于NoteExpress
Gas carrying with wash oil after the benzol washer, disease of wash oil, leaking oil of oil water separator etc. are the main factors influencing the consumption of circular wash oil.
塔后煤气夹带洗油、洗油变质、油水分离器跑油等是影响循环洗油消耗的主要原因。
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