常見例句雙語例句The whole set of photos are a profuse addition to the current metallographic test photos, and it has momentous practical significance.該整套圖譜對現(xiàn)有的金相檢測圖譜是一個非常豐富的補充,具有重要的實用意義。The concept and grading method of the"martensitic grade"in the standard of《Metallographic Test for Carburizing Auto Gear》were analyzed and discussed according to the experience and test results.通過生產(chǎn)中的試驗例證和檢驗結(jié)果,針對《汽車滲碳齒輪金相檢驗》標(biāo)準(zhǔn)中“馬氏體級別”的概念和評級方法進(jìn)行了分析和討論。It was approved by metallographic test that the sound velocity measured by the instrument was more accurate. The instrument was easy for operation and could be used to realize automatic control.用該儀器進(jìn)行現(xiàn)場檢測并通過金相試驗對比,試驗證明,用球化率測定儀比用測厚儀和探傷儀測得的聲速值要精確,而且操作簡單,可實現(xiàn)全過程自動控制。 返回 metallographic test