chemical replacement 中文意思是什麼
chemical replacement
解釋
化學置換- chemical : adj 化學的，化學作用的；應用化學的，用化學方法獲得的。n 〈常 pl 〉化學製品；藥品。 fine chemicals...
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The imported transparent glaze fired at lower temperature was analysed semi - quantitatively by adopting emission spectroscope. the stripping of lead and cadmium from this transparent glaze fired at lower temperature in ceramic product was determined by atomic absorption spectroscope. the effect of chemical composition on the stripping of lead and cadmium was analysed. upon the author s opinion, the overproof lead stripping from the imported transparent glaze fired at lower temperature can only be settled by adopting lead - free glaze instead of adopting low - lead prescription. the author succeeded in developing an excellent lead - free transparent glaze fired at the lower temperature of 1000 1050. the success is based on an inquiry into the feasibility of using such new agents of fusion as li2o and sro in replacement of pbo ; and on a study of the effects of the contents of sio2 ， al2o3 ， b2o3and other metallic oxides on such performances of glaze as coefficient of linear expansion, fusion temperature and transparency. it is also based on an analysis of coefficient of linear expansion of blank and glaze on an analysis of coefficient of linear expansion of blank and glaze on their correlation ; and on a study of technology for preparing glaze
採用發射光譜儀對進口低溫透明釉進行半定量分析，並用原子吸收光譜儀測定其陶瓷製品的鉛、鎘的溶出量，分析化學成分對鉛、鎘溶出量的影響.結果表明，進口低溫透明釉採用低鉛配方不能解決鉛溶出量的超標問題，只有採用無鉛釉才能解決.探討用氧化鋰和氧化鍶等新型熔劑完全代替氧化鉛的工藝，研究釉料中氧化硅、氧化鋁、氧化硼和各種金屬氧化物的含量，對釉的線膨脹系數、熔融溫度和透明度等性能的影響.分析坯料、釉料的線膨脹系數及其相互關系和釉料制備的工藝，研製出優質的1000 1050低溫無鉛透明釉 -
However, efforts to eliminate semicarbazide sources from packaging had already progressed, and manufacturers are now using sodium bicarbonate as the replacement chemical in the production of plastic seals
然而，將氨基脲清除出包裝材料的工作也已取得了進展，現在生產商們用重碳酸鹽作為氨基脲的替代化合物。 -
The main goal of recovery of sodium hydroxide was the economies due to the high replacement cost of this chemical.
回收氫氧化鈉的主要目的是在經濟方面，因為它大大補償了化學藥劑消耗費用。 -
Meanwhile, fundamental principles about electroless tin plating by reducing agent and disproportionation reaction were explained. function of every component in the bath was explained that complexing agent can effectively change the potential of copper and tin, and accelerate the beginning of replacement reaction favorably ; reducing agent can increase the rate of chemical reaction and has the effect of promoting reaction dynamics too ; antioxidant can effectively prevent sn2 + in the bath from being oxidated ; additive agent a can improve the stability of the bath ; additive agent b has such effects as refining and brightening for the tin deposits, and it enlarges the range of brightening section ; additive agent c used as leveling agent can not only make the depostis level off, but also improve the dispersive ability of the bath ; surface - active agent can solve bubble problem which gathered on the surface of the deposits, and improve the surface quality of the deposits and the bath stability
闡述了鍍液中各組分的作用：絡合劑能有效地改變銅、錫的電位，促使初期的置換反應順利進行；還原劑能加快化學反應速度，對反應動力學有積極的促進作用；抗氧化劑能有效地防止鍍液中sn ~ （ 2 + ）的氧化；添加劑a能提高鍍液的穩定性，添加劑b對鍍層能有細化和光亮作用，擴大了鍍層光亮區的范圍；添加劑c作為平滑劑，不僅能增強鍍層表面的平整性，而且能提高鍍液的分散能力；表面活性劑較好地解決了化學鍍過程中汽泡在鍍件表面聚集的問題，提高了鍍層的表面質量和鍍液的穩定性。 -
Methods for chemical analysis of iron ores - the fluoride replacement complexometric method for the determination of aluminum content
鐵礦石化學分析方法氟鹽取代絡合容量法測定鋁量 -
The major diagenetic events include mechanical compaction, chemical compaction, cementation, replacement and dissolution. the reservoir quality experienced from being destroyed to being enhanced during the whole diagenetic evolution process
主要的成巖作用有：機械壓實作用，化學壓實作用，膠結作用，交代作用以及溶蝕作用。 -
The principles and applications of the soil remediation techniques including soil replacement, chemical remediation, bioremediation, electroremediation and thermoremediation are presented, and perspectives of these techniques are discussed
摘要本文簡要介紹了污染土壤治理的各種方法，包括換土法、化學修復、生物修復、電修復、熱修復等的基本原理、適用范圍及其基礎研究和應用的最新進展。 -
Should i consider using nicotine replacement therapy ? nicotine, the addictive chemical in cigarette, is a powerful drug so when you stop taking it, your body is in withdrawal
香煙所含的尼古丁是一種十分強力及會令人上癮的化學物質，當你一旦停止吸煙，你的身體會出現脫癮徵狀，例如：
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