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Results There were a positive correlative relationship between fluoride concentration in drinking water and the rate in every osteosclerosis degree. There was also a positive correlation relationship between fluoride concentration in drinking water and the index of osteosclerosis.

结果 饮水氟水平与各度骨质硬化率呈正相关关系，与骨质硬化指数也呈正相关关系。

Thus, this study attempts to measure heavy metal concentration in Chinese herbal medicine over-the-counter drugs, to analyse users' motives and intensions, to assess the risk of health, and provide reference to regulatory authority. Data were collected through questionnaire in Miao-Li county, sampling, and laboratory measurement of the metal concentration in Chinese herbal medicine over-the-counter drugs.

是以本研究对苗栗县民使用中药者进行问卷调查，以调查其使用中药之动机及意向，并抽样市售中药成药四十八种，检验其含铅、砷、镉及汞之浓度，并探讨其对人体健康是否会造成风险，进而供有关当局制定相关安全标准量用。

Grandis×E. urophylla. The results also showed that the chlorophyll content of leaves in eucalyptus seedlings increased with the concentration of nitrogen, but it showed a decreasing tendency in overhigh nitrogen concentration.

桉树叶片的叶绿素含量随着氮素处理浓度的升高而升高；但是过高的氮素处理，叶绿素含量则出现下降的趋势。

The results show that the bud bacilli can oxidate ammonia to nitrous, and when ammonia concentration in wastewater ranges from 25 mg/L to 70 mg/L, ammonia removal amount is direct proportion to ammonia concentration in wastewater and ratio of ammonia removal ranges from 58% to 69%.

结果表明，芽孢杆菌主要进行亚硝化脱氮，在氨氮进水浓度25～70 mg/L范围内，氨氮去除量与进水氨氮浓度成正比，氨氮的去除率稳定在58%～69%。

The results showed that both increasing the KMnO4 concentration and using acidic or alkaline solution promoted the removal of Hg^0. The reasons are that H2SO4 in solution facilitates the adsorption of Hg^0 on MnO2, and that free radical OH produced in alkaline solution can oxidate Hg^0. High temperature has a negative effect on the removal of Hg^0, and the effect of Hg^0 initial concentration can be neglected.

研究结果表明，高猛酸钾初始浓度的增加、强酸或强碱条件均有利于Hg^0的去除，H2SO4的存在促进了Hg^0在MnO2上的吸附，而强碱水溶液中产生的OH间接氧经了Hg^0；反应温度的升高抑止了Hg^0的去除，而Hg^0初始质量浓度对反应的影响可忽略；KMnO4。

The effects of temperature, oxygen partial pressure,initial acid concentration,partical size and concentration of Fe~(2+)added into the solution on the leaching rate of iron are examined.

考察了温度、压力、始酸浓度、矿样粒度、溶液中Fe ~(2+)浓度对Fe浸出率的影响。

Parts per million is a measure of concentration that is used where low levels of concentration are significant....

每百万件是一个集中用于低浓度水平实验的重要参照标准，也是一种重要的实验方法。。。。

The results showed that 2,4 D had promotive effects on the growth of pavlova viridis, especially in the early stage of culture, and the optimum mass concentration was 0.1 mg/L. 6 BA had lethal effect on pavlova viridis, and the lowest lethal mass concentration was 1.0 mg/ L.

结果表明，在试验浓度范围内，2 ，4— D对绿色巴夫藻生长的影响在培养早期比后期明显，最适浓度为 0 。1 m g/L ；6-BA质量浓度≥ 1 mg/L时对绿色巴夫藻有致死作用，质量浓度为 0 。1～ 0 。8mg/L时，对绿色巴夫藻的生长有促进作用，促进生长的最适质量浓度为 0 。5mg/L。

Were extracted by different extracting solvents in lab, the results indicated that with the increasing of Mn concentration levels, the speciation of Mn in their roots transform from H2O-extractable species to HCl-extractable species and NaCl-extractable species, showed increases of Mn of oxalate binding and pectate binding or prontein binding in cell wall of roots; Mn of H2O-extractable species were 34.55～50.26% of total Mn in stems and increased with the increasing of Mn concentration levels, which benefited upward transport of Mn; Percentage of Mn of H2O-extractable species were 38.55～44.19% and Mn of HCl-extractable species were 20.66～28.74% to total Mn in leaves, suggesting that most Mn in leaves were the speciation of H2O-solubility organic salts or manganese oxalates. 5. Chlorophyll in leaves of Polygonum hydropiper L.

不同的提取剂对水蓼根、茎、叶的提取结果表明，随着锰处理浓度增加，水蓼根中Mn由水提取态向盐酸提取态和氯化钠提取态转化，说明根细胞壁结合的草酸盐和果胶酸盐或蛋白质结合态的Mn含量随锰处理浓度的增加而增加；在茎中，水提取态锰含量占总锰的34.55-50.26%，且随锰处理的增加其水提取态锰的比例增加，这有利于锰向上运输；水蓼的叶片中，水提取态锰占总锰的38.55-44.19%，盐酸提取态锰占总锰的20.66-28.74%，说明叶片中的锰大部分以水溶性有机盐或草酸锰的形态存在。

The concentration of monomethyihydrazine in brain increased along with perfusion time and monomethylhydrazine concentration in the perfusate.

MMH灌流浓度分别为145，290和580mgL^(-1)，灌流时间为2，5，8及10min；采用对-二甲氨基苯甲醛比色法进行脑组织中的MMH浓度测定。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。