例句與造句

1. the research field of this thesis belongs to heat treatment in metal materials . ionic nitriding is a universal applied technique, which involves lots of marginal subjects such as discharge physics, vacuum, chemistry, electronics and materials science
   該課題屬于金屬材料熱處理領(lǐng)域，離子氮化是一門綜合性的應(yīng)用技術(shù)，涉及到了放電物理、真空、化學(xué)、電子學(xué)、材料科學(xué)等多門邊緣學(xué)科。
2. the thesis focuses on the manufacture practice and the characteristic of ionic nitriding . the emphasis is placed on the research of plasma nitriding principle, nitriding technics and operation, test on the microstructure and performance of the nitrification layer
   該課題著力于生產(chǎn)實(shí)踐，圍繞離子氮化技術(shù)特點(diǎn)，注重理論聯(lián)系實(shí)踐，介紹了等離子滲氮原理、滲氮工藝和操作、離子滲氮層組織性能的檢測(cè)。
3. strengthening mechanism of ion nitriding is different from surface quenching and cementation, which makes surface strengthen by quenching to get martensite . ionic nitriding is the way to make materials strengthe n, which result from the steady compound formed on the surface of the metal . there is no need for quenching after treatment
   離子滲氮的強(qiáng)化機(jī)理不同于表面淬火，滲碳等表面熱處理方法，這些方法必須進(jìn)行淬火得到馬氏體使表面強(qiáng)化，而離子滲氮是在金屬表面形成穩(wěn)定化合物而使材料強(qiáng)化，處理后不須淬火。
4. It's difficult to find ionic nitriding in a sentence. 用ionic nitriding造句挺難的