鉛添加劑 的英文怎麼說
中文拼音 [qiāntiānjiājì]
鉛添加劑
英文
lead additive-
Such organolead compounds are banned as petrol additives in some countries.
這樣的有機鉛化合物在一些國家中是被禁止作為汽油添加劑的。Congo - red method was used to determine the thermal stabilization ability of products, which were consisted of dibasic lead phosphite and tribasic lead sulfate. the results showed that the nanometer stabilizer obviously increased the ability of thermal stabilization. in the same thermal stability level it could cut 25 % - 33 % amount of lead salt than using ordinary products
利用剛果紅法測試了納米二鹽和三鹽復合物的熱穩定效果，結果表明納米鉛鹽能明顯地提高熱穩定性，在保證pvc熱穩定性的同時可較普通鉛鹽減少用量25 ? 33 ，同時討論了添加劑在加入時應注意的問題。This paper researches on the practical current and potential distributions on the positive and negative plates of automotive batteries in the course of their formation processes by the means of an in situ electrochemical scan, and then studies the influences of the formation and also the additives on the performance of the automotive plates
本文利用電化學掃描方法研究鉛酸蓄電池正負極板在化成過程中電流密度和電位分佈及化成對極板電性能的影響。同時分析了正負極添加劑的性質及其對極板性能的影響。This thesis consists of four chapters : ( 1 ) a review ; ( 2 ) study on the optical chemical membrane for detection of lead ion by using 2 - hydroxy - 1 - naphthaldehydene - 8 - aminoquinoline as fluorescence indicator ; ( 3 ) study on the optical chemical membrane for detection of lead ion by using meso - ( 4 - methyloxyphenyl ) porphyrin as fluorescence indicator ; ( 4 ) study on the optical chemical membrane for detection of lead ion by using 2 - methene - benzimidazole monoaza - 18 - crown - 6 as fluorescence indicator. in chapter one, the laboratory method for determination of lead ion, the progresses of chemical sensor for detection of lead ion recently and the introduction of the basic theory, relative merits of sol - gel and its application in optical chemical sensor were involved
第二章利用有機改性的溶膠-凝膠包埋方式，以2 -羥基- 1 -萘甲醛- 8 -氨基喹啉為熒光指示探針，結合正交實驗方法探索了幾個重要因素，如加水量、醇硅比、催化劑、添加劑等對成膜性的影響，制備了對水中鉛離子有較好響應的傳感膜，其線性范圍為1 . 0 10 - 7 ~ 5 . 0 10 - 5mol / l ，檢測限為3 . 6 10 - 8mol / l 。During the formation, the positive plates with red lead and bapbo3 additives are easier formed than that without additive, so the current and potential distributions on the plates with additives are more uniform than that without additives in the early stage of the formation. these distributions on the plate with red lead are the most uniform, and the polarization is the smallest
在正極板化成過程中，含紅丹和鉛酸鋇鉛膏的正極板比不含添加劑的正極板更容易化成，所以在化成初期含添加劑正極板的電流密度和電位分佈比不含添加劑正極板上的電流密度和電位分佈更均勻。From the experiment we have found out that the carbon fibre can improve the anode performance when it was used as pam additive and meanwhile it can have some benefits to the anode life. when its content at 0. 2 - 0. 3 % in pam can achieve its best result and under this situation it can improve the utilization of pam by 5 % at different discharge current. carbon fibre and sulfate sodium is used as complex pam additive and its effect is better than that of carbon fibre which alone is used as additive
通過實驗我們發現，碳纖維作為鉛酸電池的正極活性物質添加劑能提高鉛酸電池正極的性能，並且對電池正極板的壽命有一定的好處，當碳纖維在正極活性物質中的含量為0 . 2 0 . 3能得到最理想的效果，這個時候能在各種不同的放電電流下提高正極活性物質的利用率5左右，並且能夠使極板的電化學阻抗降低。Food additive and flavoring substances
食品添加劑中鉛的測定方法Determination of lead in food additives
食品添加劑中鉛的測定Industrial pollution has been a problem in certain areas of hong kong, and 12 parameters relating to metals and metalloids were initially used in 1986 to measure the degree of such pollution. these parameters are aluminium, arsenic, boron, cadmium, chromium, copper, iron, mercury, manganese, nickel, lead, and zinc. in 1997, another seven were added antimony, barium, beryllium, molybdenum, silver, thallium, and vanadium, making a total of 19
香港部分地區多年來一直受工業污染的困擾， 1986年河溪水質監測計劃推行初期我們用12項金屬及準金屬參數來檢驗工業污染水平：鋁砷硼鎘鉻銅鐵汞錳鎳鉛及鋅其後在1997年起另添加了七項新參數：銻鋇鈹鉬銀鉈及釩，監測的參數共19項，此外並測試了四項與工商業污染有密切關系的參數，即氰化物總量氟油脂及洗滌劑。Lead and its compounds may be found in products such as batteries, lead - based paints, lead - containing ceramics, lead solder and leaded petrol
鉛及其化合物可使用於電池油漆陶瓷鉛錫焊接及汽油的添加劑上。The lead content in vehicular exhaust is the result of using organolead compound as fuel additives. however, a ban on the use of leaded petrol in hong kong in 1999 has completely eliminated the emissions of lead from motor vehicles
車輛廢氣含有鉛粒子是因為含鉛汽油加入了鉛作為汽油的添加劑，但自一九九九年香港政府禁止車輛使用含鉛汽油起，本港的車輛都不會排放鉛。分享友人