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- This study relates to a rapid method for determining the iron content in wastewater by means of the mercury and chromium free EDTA titration. 研究了采用EDTA无汞无铬滴定法快速测定废水中铁含量的方法。
- mercury and chromium free 无汞无铬
- In view of the detrimental effect of mercury and chromium in determination of iron by means of dichromate titration, a new method was proposed containing no mercury and chromium. 针对重铬酸钾法测定铁含量中汞和铬的有害影响，介绍了一种无汞无铬测定法。
- Mercury and Venus are inferior planets. 水星是在地球轨道内侧的一颗行星。
- Week of Alchemy: Double income of Mercury and ulfur from mines. 链金之周：所有水银矿与硫磺矿产量加倍。
- Mercury and Saturn readily fit within the same binocular field. 在同一个双眼领域内和土星欣然合适的水星。
- Virgo is ruled by Mercury and Scorpio is ruled by Mars and Pluto. 处女的主宰是水星，而天蝎的主宰是火星和冥王星。
- Week of Alchemy: Double income of Mercury and Sulfur from mines. 链金之周:所有水银矿与硫磺矿产量加倍。
- From Earth, one may see transits of Mercury and Venus. 从地球我们可以看到水星和金星凌日；由火星上，还可以看到地球凌日。
- The paper studies the effect of physiological and biochemical indexes of Mung bean under the single pollution of the different concentration mercury,lead and chromium. 采用盆栽试验的方法,研究了不同浓度的汞、铅和铬单一污染胁迫下对绿豆的一些生理生化指标的影响。
- They also contain mercury and must be disposed of as hazardous waste. 它们还含有汞以及其他必须加以处置的危险废物。
- The former is specified as injurant cycanuric, 6 chromium, mercury and cadmium, etc 24, biochemical oxygen demand (BOD), chemical oxygen demand (COD), iron, Tin 16. 对前者指定的有害物为氰、6价铬、汞、镉等24项，对后者为生化需氧量(BOD)、化学需氧量(COD)、铁、锡等16项。
- Zinc (Zn), Nickel (Ni) and Chromium (Cr) were also detected in Ssu-Hao drain. 四好排水则发现锌、镍与铬三种重金属污染。
- Just to the upper left of the Moon darkened Sun are planets Mercury and Venus. 就在月球遮挡住太阳的左上方就是水星和金星。
- I know, we'll make that dark back spare room into a couple of really up-to-date green and chromium bathroom. 我知道，我们将会把那光线差的备用后屋改为两个真正现代的青铬色浴室。
- Effects of Single and Combinative Pollutions of Lead, Cadmium and Chromium on the Germination of Brassica chinensis L. 铅、镉、铬单一和复合污染对青菜种子萌发的生物学效应。
- The safe concentrations of zinc, cadmium and chromium to crucian are far higher than the standard. 铜对鲫鱼的安全质量浓度略低于渔业水域水质标准 ;锌、镉和铬的安全质量浓度远远高于标准 .
- We make a kind of milk product having functional effect on human being s with Zingiber Officinale Rosc and chromium. 利用多因素多水平正交实验确定姜汁凝乳的最佳条件,并确定了该制品的基本配方。
- He closed the deal successfully and was home free. 买卖成交了，他松了一口气。
- Products with black finish, plated with bright (yellow/black) zinc, brass, nickel and chromium are made upen request. 我们还可根据要求对产品进行发黑，镀黄/黑锌，镀铜、镍和铬等各种表面处理。
