啥意思,速求?where marked * the material contact area Rmr should be approx.50 to 70%,determined at a cut depth c=0.25xRz,relative to a reference line of Cref.5%

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啥意思,速求?where marked * the material contact area Rmr should be approx.50 to 70%,determined at a cut depth c=0.25xRz,relative to a reference line of Cref.5%
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啥意思,速求?where marked * the material contact area Rmr should be approx.50 to 70%,determined at a cut depth c=0.25xRz,relative to a reference line of Cref.5%
啥意思,速求?
where marked * the material contact area Rmr should be approx.50 to 70%,determined at a cut depth c=0.25xRz,relative to a reference line of Cref.5%

啥意思,速求?where marked * the material contact area Rmr should be approx.50 to 70%,determined at a cut depth c=0.25xRz,relative to a reference line of Cref.5%
相对于参照线长度(Cref.)的百分之五的纵切深度为c(c=0.25乘以z的面积【Rz应该是某个用z标出的部分的面积,不知道你的上下文,瞎猜的】)时,标有*号的部分的材料接触面积(Rmr)应该大约为百分之五十到百分之七十.
就你给出的条件,这道题以R表示面积,C表示长度.
最好给出上下关联的文字,这样可以翻译得更通顺些~

哪里有*的材料接触面积,应approx.50 Rmr减少70%,确定在c = 0.25xRz深度,相对于参考线的5%。Cref吗