Flange surface roughness of the influence, especially sealing effect when using the soft cushion, seal surface coarse degree value big are caused by the leak is one of the main reasons why.
法兰表面粗糙度对密封效果影响很大，特别是当采用非软质垫片时，密封表面粗糙的度值大是造成泄露的主要原因之一。
It may be used effectively in deburring, reducing the value of surface roughness, chamfering. improving conditions of surface residual stress and surface hardness and reducing greatly microdefects.
它的使用可以有效地去除毛刺，降低表面粗糙度值，棱边倒圆，改善表面残余应力状况，提高表面硬度，大幅度减少微观缺陷。
It means that in rough lapping the value of machined surface roughness can be reduced with lapping pressure increasing.
也就是说粗研时增大研磨压力可减小工件已加工表面粗糙度值。
Furthermore, with the method of low-temperature spraying oil mist, the value of surface roughness of the workpiece has declined.
同时，采用低温喷雾冷却方法，加工表面粗糙度值也有所下降。
Consequently, at the macroscopic crack branching velocity, the experimental fracture surface energy and the fracture surface roughness; have no single value in such materials.
因此，对这种材料在宏观裂纹分叉速度时，实验断裂表面能及断裂表面韧性没有单一值。
The surface roughness of stone is very discrete, whose value in a place is 3-4 times as large as that in other places.
石材的表面粗糙度很分散，在不同的位置表面粗糙度值相差达3 - 4倍。
The value of surface roughness is influenced by discharge current which involves discharge energy, pulse duration and polarity effect.
在加工过程中，表面粗糙度会受到放电电流的影响，其中包括放电电流能量、电流脉宽及电流极性的影响。
The main achievements of this thesis are summarized as follows:1. The surface roughness of stone is very discrete, whose value in a place is 3-4 times as large as that in other places.
本文的主要成果有以下几个方面：1．石材的表面粗糙度很分散，在不同的位置表面粗糙度值相差达3-4倍。
The main achievements of this thesis are summarized as follows:1. The surface roughness of stone is very discrete, whose value in a place is 3-4 times as large as that in other places.
本文的主要成果有以下几个方面：1．石材的表面粗糙度很分散，在不同的位置表面粗糙度值相差达3-4倍。
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