磨耗值 meaning in English

abrasion value
wear value
wearing value

Among all the parameters that display the loss of rail , head wear of is one of the most primary parameters
在各种决定钢轨伤损的参数中，钢轨头部的磨耗值是最主要的参数之一。
So , it is very important for the maintenance security of the rail and railway to measure rail - wear precisely and speedily and this problem is still an important research subject of which the ministry of railway in every nation has to be in face
钢轨磨耗是否超限直接决定钢轨是否被更换或打磨，因此，精确地测量出磨耗值对于钢轨的维护及行车的安全是非常重要的。如何精确而高效地测量出钢轨磨耗一直是国内外铁道部门的一个重要的研究课题。