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In this paper,by the University has been the chemical knowledge of the potassium dichromate has no mercury titration experiment, given the conditions and the determination of reliable analytical methods.

本文应用大学已获得的化学知识，对已有的重铬酸钾无汞滴定法进行实验研究，给出了测定条件和可靠的分析方法。

Results of organic mass spectrometry analysis of East Lake, Wuhan showed the applicability of potassium dichromate method in eutrophic waters.

根据东湖水样的有机质谱分析结果，重铬酸钾法测定富营养化水体的适用性在文中得到论证。

Male and female rats and mice were gien four different doses of sodium dichromate dihydrate in their drinking water ranging from 14.3 mg/l to 516 mg/l for two years.

研究人员在雌雄大鼠和小鼠的饮用水中加入4种不同剂量（14.3毫克/升至516毫克/升）的重铬酸钠，为期两年。

The doctor blade is hard-chrome plated carbon steel ground to a precision of 125 micron across its width.

刀片周围是以125微米的精确度计量的硬镀铬碳钢层。

All the Lewis base ion and molecule which can supply duplet to coordinate with Cr〓 as ligand. Cr〓 also has another special property, its hydrate will bond together to form multi-core complex compound by hydroxy glycidic when the concentration is properly.

含铬外加剂利用Cr〓的特点，在一定浓度下除了自身缩合形成多核络合物外，还可吸附在矿料表面，在加热条件下，与酸性集料表面的羟基缩合，通过氧桥与矿料表面键合。

The influence of the glycine concentration during electrodepositing Fe-Cr alloy and the effect of glycine on electrodeposition were studied.

研究不同浓度甘氨酸对电沉积铁铬合金过程的影响，分析了甘氨酸在电沉积过程中的作用。

Chromium is an element widely used in industries, such as electroplate, pigment, paint, metal alloy, dying and so on.

重金属元素铬一方面在工业上得到广泛的应用，如在电镀、颜料、油漆、合金、印染、等方面；另一方面它对人和动植物具有严重的危害。

Two ribs define the lower trapezoidal air vents and chrome rings encase the front fog lights.

两根肋骨下定义的梯形通风口和包住的前雾灯镀铬环。

The results shows, drown or etherization to make mouse death, Alcohol-fixed, defatted with 3% potassium dichromate, vitrification with Potassium hydroxide, coloration of bone with Alizarin Red S, the glycerol-ammonia were respectively coloration of cartilage with Alcian blue, vitrification with glycerol which had different concentrations, were the best conditions for making transparent specimen.

结果表明，水淹或乙醚麻醉处死、酒精固定、3%重铬酸钾脱脂、氢氧化钾透明、茜素红硬骨染色、阿利新蓝软骨染色、甘油-氨水漂白、甘油逐级透明的制作方法，获得的透明标本效果最佳。

This article analyzed the pollutant source in everglade of Dongting Lake, based on investigate data from hydrological observation station of Dongting Lake, environmental monitor station and spots examine.

利用洞庭湖水文观测站、环境监测站和实地考察资料，分析了洞庭湖湿地的TN、TP、COD、六价铬等重金属、硫化物、氰化物、氟化物和石油类等污染物的来源和数量。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。