精鉛 的英文怎麼說

中文拼音 [jīngqiān]
精鉛 英文
lead bullion
  • 精 : Ⅰ形容詞1 （經過提煉或挑選的） refined; picked; choice 2 （完美;最好） perfect; excellent 3 （細）...
  • 鉛 : 鉛名詞1. （金屬元素） lead （pb） 2. （鉛筆心） lead （in a pencil）; black lead
  1. Antimony concentrates - determination of lead content

    銻精礦化學分析方法鉛量的測定
  2. Flotation technique for a hard - to - separate copper sulphide mine

    從凡口鉛鋅礦尾礦中回收硫精礦的研究
  3. Fig5. beware managers who use rotary pencils with extra fine extendible leads, they ' re usually precise with your operation to seconds

    圖五：尤其小心那種喜歡用超細細自動鉛筆的上司：他們是那種會要求你精確到分秒辦事的傢伙。
  4. Simultaneous determination of six metal elements of micro - amounts in pure p - phthalic acid by icp - aes

    法測定銀精礦中銀銅鉛鋅砷
  5. Premium activated carbon filter is made of special polyfoam which has optimum absorption of toxic air produced by flux soldering and lead smoke

    配置優質活性炭過濾棉，採用特殊脲烷泡沫塑料精製而成，具超強吸收焊劑所產生的毒氣和鉛煙功能。
  6. Pure zn refined from spelter in pb and zn production is a very complex technical process, which needs series work. there is every probability of appearing fault because of the large quantity of facility in production, so that it causes serious effect to the production and security

    鉛鋅生產中將粗鋅精煉成為精鋅是一個需要連續作業的復雜工藝過程，所涉及的生產設備較多，發生故障的可能性增大，以至對生產或安全造成嚴重影響。
  7. Abstract : the ashing loss of pb in water samples has been studied in digestive method for determination of lead by dithizone spectrophotometry ( gb 5750 - 85 ). after the digestive conditions are improved, the digestive loss of pb in some polluted water samples is prevented. the recovery of pb rised, the accuracy and precision of the analytical date are guaranteed

    文摘:對國標5750 - 85雙硫腙分光光度法中消化水樣時鉛的灰化損失進行了探討，針對某些污染嚴重的水樣，改進了消化處理的條件，有效地消除了灰化損失，提高了鉛加標回收率，保證了分析測試數據的精密度和準確度。
  8. Taking the example of china tin gruop co., ltd hechi metallurgy and chemical industry, the article details the production processes, technology conditions and production practice of removing arsenic from the second caustic sludge and lead from the second lead sludge

    摘要文章以華錫集團河池冶金化工廠精煉生產工藝為例，詳細介紹了採用二次堿渣進行脫砷，二次鉛渣進行脫鉛的生產流程、工藝技術條件及生產實踐。
  9. After 18 tea leaf producing factories were investigated, the results showed that the tea leaf of good - grade in the factories would alleviate the lead contamination in the tea leaf, while the commer tea leaf producing process can significantly increased the lead contamination in tea lead

    摘要通過對18個茶葉生產廠家的分析調查發現，精製茶的生產工藝對茶葉的鉛含量在總體上有降低作用，而粗製茶的加工工藝卻有增加的趨勢，因此茶葉生產工藝對茶葉的鉛含量影響很大。
  10. Technical reformation of silver extracting from silver - containing lead concentrate by cyanidation in some mine

    某礦含銀鉛精礦氰化提銀工藝的技術改造
  11. P pencil points for precision drawing instruments

    精密繪圖儀的鉛筆筆尖
  12. Method for chemical analysis of lead concentrates - the fire - assaying methods for the determination of gold and silver content

    鉛精礦化學分析方法火試金法測定量和銀量
  13. The methods for chemical analysis of lead and zinc bulk concentrates - the determination of gold and silver content - the fire - assaying methods

    混合鉛鋅精礦化學分析方法.金量與銀量的測定.火試金法
  14. Lead zinc bulk concentrate

    混合鉛鋅精礦
  15. During the course of rectifying zinc, the fluid of coarse liquid zinc put into pb column from furnace works as a key technical parameter

    在鋅的精餾過程中，液態粗鋅從熔化爐加入到鉛塔這個過程的流量是一個關鍵的技術參數。
  16. The methods for chemical analysis of lead and zinc mixed concentrates - the determination of arsenic content - the iodimetric method

    混合鉛鋅精礦化學分析方法.砷量的測定.碘滴定法
  17. Transmission electron microscopy : the testis was cut into fragments ( 1mm x 1mm x 1mm ), fixed in 2. 5 % glutaraldehyde made up in 0. 1 m phosphate buffer ( ph 7. 2 ), postfixed in 1. 0 % oso4, dehydrated in a progressive ethanol and acetone solution, embedded in epon812, sectioned with lkb ultramicrotome, and stained with urangl acetate followed by lead citrate, then observed with h - 600 microscopy and photographed

    透射電鏡樣品以2 . 5戊二醛（ ph7 . 2 ， 0 . 1m lpbs緩沖液配製）和1鋨酸雙固定，酒精和丙酮系列脫水， epon812包埋， lkb型超薄切片機切片，醋酸鈾和檸檬酸鉛雙重染色， h - 600透射電鏡下觀察並拍照。
  18. Field procedure for precision testing of surveying instruments ; plumbing instruments

    大地測量儀精度檢驗的野外作業法.鉛錘水準儀
  19. The results show that the recovery of lead, gold and silver are 93. 36 %, 91. 02 % and 69. 38 % seperately, and the recovery of copper in matte is more than 98 % when the ratio of lead concentrate to alloy is 230 %

    試驗結果表明：當鉛精礦相對合金加入比率為230 %時，鉛直收率93 . 36 % ，金和銀直收率分別為91 . 02 %和69 . 38 % ，銅在冰銅中的直收率為98 %以上。
  20. In order to solve the problems effectively, under the auspices of 863 plan in china, the synthesis diagnosis has been carried by means of measuring and numerical imitating the combustion chamber of refining column, and some conclusions is such as : ( 1 ) through measuring the temperature and combustion in the burning chamber of the refining column, the result shows the temperature difference on the same level is more than that in height direction, and there is a few of co in bottom of burning chamber. ( 2 ) in order to ensure normal work of flue system in lead column in the course of zinc refining, theoretic calculation and measure about the flow resistance of exhaust gas are carried through. the results of study reveal that drawing out force of chimney is inadequate, which is mainly caused by illogicality of flue construction

    在研究過程中，採取了現場實測和數值模擬手段對韶關冶煉廠鋅精餾鉛塔燃燒室及排煙系統進行了綜合診斷，具體結果包括如下： （ 1 ）完成鋅精餾鉛塔燃燒室內溫度測試以及燃燒狀況的測試，結果發現：鉛塔燃燒室內水平方向的煙氣溫度並非均勻，而且其溫差比上下方向的溫差更大，以及鉛塔燃燒室尾部存在co未燃燼問題； （ 2 ）為了保證鉛塔煙氣系統的正常工作，對煙道系統的阻力進行了理論計算及測試分析，結果發現：鋅精餾鉛塔煙氣系統中煙囪抽力不夠，這主要是煙道結構不合理所造成的。
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