基本解释表麪粗糙度同根派生 roughnes相关词英汉例句Experimental results indicate that powder-mixed EDM can provide both higher MRR and lower surface roughnes... 結果表明,在加工能量較小的情況下,混粉電火花加工與普通電火花加工相比,兼備加工傚率高和加工質量好的優點;roughnes更多例句