Carbon and Nitrogen Stable Isotopes as Tracers to Source Organic Matter in the Yangtze Estuary

1、

Studies on the utilization of Phosphoric fertilizer on Alfalfa with the Usage of 32P Isotope Tracer

~（32）P同位素示踪法对紫花苜蓿利用磷肥的研究

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2、

Study on Distribution and Transportation of Rare Earth Element Tb in Chicken by~ ( 160) Tb Isotopic Tracing

~（160）Tb同位素示踪研究稀土元素铽在雏鸡体内的分布和转运

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3、

Co_2 global cycle and its isotopic tracing investigation

CO2全球循环及其同位素示踪研究

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4、

Fe2+, produced by the electrodissolution of iron will lead the change of pH, which cause the formation of passive film at the electrode/ solution interface.

电化学过程中产生的亚铁离子会导致pH的变化，pH的变化在电极表面形成预钝化膜，它可能是氢氧化亚铁膜。

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5、

Everyone in the know in the discussion of the color of ferrous hydroxide, I found in teaching: purity of ferrous oxide is white.

在知道中大家都在讨论氢氧化亚铁的颜色问题，我在教学中发现：纯氢氧化亚铁是白色的。

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6、

An antiwear film was formed on the rubbing surface by the deposition of the nanometer manganese hydroxide with the adsorbed dispersive agent due to shear effect.

吸咐有分散剂的纳米氢氧化锰在摩擦表面的沉积及随后的剪切作用形成了具有抗磨减摩性能的膜。

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7、

Study on Antiwear and Reducing Friction Additive of Nanometer Manganese Hydroxide

纳米氢氧化锰抗磨减磨添加剂的研究

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8、

2,5 Dimethyl 2,4 hexadiene has been synthesized by catalytic dehydration of 2,5 dimethyl 2,5 hexanediol with aluminium oxide, chromium oxide and phosphoric acid respectively. The mixed dienes have been isomerized by chromium oxide.

本文以2,5二甲基2,5已二醇为原料，分别用三氧化二铅、二氧化二铬和磷酸催化脱水合成2,5二甲基2,4己二烯，同时用三氧化二铬作催化剂对醇脱水生成的混合二烯烃进行了异构化。

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9、

The process for preparating chromium trioxide from sodium dichromate by reduction of ammonium salt is simple and the product has high quality and can be up to chemical regent grade.

利用重铬酸钠铵盐还原法制备三氧化二铬，其工艺简单，产品质量高，可达化学试剂级。

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10、

The end point of the titration is confirmed by the forever stop end point method. The content of Cr_2O_3 in chromium mineral is calculated based on the electrolyse law.

以Fe2+对Cr2O27-进行库仑滴定，采用永停终点法确定库仑滴定终点，根据电解定律计算三氧化二铬含量。

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11、

The reduction extent and rate increase with temperature, however the temperature is lower at the same reduction extent in pure Cr_2O_3 reduction.

在管状炉和感应炉中对不锈钢粉尘含碳球团进行加热还原，分析得出其还原度和还原速率与纯三氧化二铬相比达到相同还原程度的温度较低；

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12、

Raman Scattering of Nanoscale Chromic Oxides

纳米三氧化二铬的拉曼散射

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13、

Preparation of cr_2o_3 from cr(ⅵ) wastewater

从含铬（Ⅵ）废水制备三氧化二铬

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14、

Chromium Oxide was Produced from High-carbon Ferrochrome Alloy Powder

以高碳铬铁合金粉为原料制备三氧化二铬

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15、

A method of preparation of the standard samples is proposed.

文中提出了一种以三氧化二铬为基准物料制备含铬标准样品的新方法。

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16、

Determination of Cr_2O_3 in Chromium Slag& Chromium Slag Blending Cement

铬矿渣及掺有铬矿渣水泥中三氧化二铬的测定

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17、

LiMn_0.85Cr_0.15O_2 was synthesized with lithium hydroxide, electrolyte manganese dioxide, chromium trioxide by solid state synthesis method at high temperature.

研究了以一水氢氧化锂、电解二氧化锰EMD、三氧化二铬为原料，直接高温固相合成LiMn（0.85）Cr（0.15）O2。

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18、

The process also produces lots of chromium oxide and sodium sulfate, consequently reduce the process cost.

该工艺同时副产大量三氧化二铬和硫酸钠，降低了2-吡啶甲酸铬的生产成本。

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19、

The types, technology and characteristics of the "green" nitration for preparing nitric esters using dinitrogen pentoxide as the nitrating agent were introduced.

前言：简要介绍以五氧化二氮为硝化剂制备硝酸酯的“绿色”硝化反应的类型、工艺及特点。

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20、

A mild and high efficient method to prepare glycidyl nitrate by selective nitration of glycidol with dinitrogen pentoxide as the nitrating agent was developed.

研究了一种五氧化二氮为硝化剂，选择性硝化缩水甘油合成缩水甘油硝酸酯的温和、高效方法。

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