trace quantity 中文意思是什麼

trace quantity 解釋
跟蹤量
  • trace : n 1 跡，足跡，蹤跡，去向。2 痕跡；證跡，線索，結果；【心理學】記憶痕；【植物；植物學】（脈）跡。3...
  • quantity : n 1 量 （opp quality）; 分量，數量；額；【物理學】值，參量。2 〈pl 〉大量，大宗，大批，許多。3 定...
  1. Abstract : the structure and the properties of the grinding ball made of the composite cast iron have been researched in this paper. the result indicates that added trace boron and a proper quantity copper to this kind of composite cast iron can increase its quench - hardening ability, and raise its hardness and impact toughness

    文摘:研究了一種復合鑄鐵磨球的組織和性能，結果表明，化學成分和淬火工藝對這種復合鑄鐵磨球的組織和性能有很大影響，微量的硼和適量的銅可以明顯地提高磨球的淬透性，經過余熱淬火得到貝氏體或馬氏體基體組織，從而提高磨球的硬度和沖擊韌性。
  2. In the paper the structure and principle of the secondary ion mass spectrometry ( sims ) are reported, and its typical applications in the hgcdte material and devices processing, especially in the measurement of the junction depth and the quantity analysis of trace impurity are introduced

    摘要文章介紹了二次離子質譜儀的結構及其基本工作原理，並通過對典型應用的分析，介紹了二次離子質譜分析技術在高靈敏度碲鎘汞紅外焦平面探測器材料和器件制備工藝中的作用，特別是在結探監測和微量雜質監控方面所發揮的重要作用。
  3. The residues were in solid form with only trace quantity of dioxins, non - volatile, insoluble in water, non - inflamable and were kept in drums that comply with the united nations standard

    （一）這些剩餘物是固體物質並只含極微量的二惡英，屬非揮發性、非水溶及非易燃的物質，全程均儲存於符合聯合國標準的滾筒內。
  4. Simultaneous detemination of trace quantity of cobalt and nickel in traditional chinese herbal medicine by adsorption voltammetry

    吸附伏安法同時測定中草藥中痕量的鎳和鈷
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