spacing ring 隔圈 ; 间隔环 ; 垫圈 ; 限位环
safety ring spacing 安全环距
optimum ring spacing 最佳环距
female rotor spacing ring 阴螺杆限位环
Male rotor spacing ring 阳螺杆限位环
sliced spacing ring 间距垫圈环
Ring spacing comply with safety agency Regulations.
条纹间隙符合相关安全机构的生产标准。
Between the chain and ring spacing are like a well-calculated and carefully processed.
连环与环之间的间距都像是有着周密计算和精心加工的。
The experiment result shows that the spacing of onion rings, which is the most prominent features of most friction stir welds, decreases with the distance of onion ring to centerline increasing .
结果表明：焊接接头横截面宏观结构特征表现为焊核区的“洋葱环”和热-机械影响区的塑性流线变形，洋葱环的环间距随着距焊缝中心距离的增大而减小；
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