浓度

The effect of formalin in seawater on P.epinepheli was that the semi-lethal concentration is 250×10-6 for 25 min,and 50×10-6 for 50 min.

海水福尔马林对拟合盘虫的作用表现为：25 min处理的半致死浓度为250×10-6，50 min处理的半致死浓度为50×10-6。

The thermodynamic state vector, Sk, which comprises four vector components, i.e., the sequence number, the position and the local solute concentrations in both SCms and SCses, is introduced to describe the local thermodynamic path and the macroscopical thermodynamic path.

引入由溶质微元的序号集合、溶质微元的位置矢量、固定相溶质浓度矢量和流动相溶质浓度矢量组成的热力学状态矢量Sk，并用其来描述色谱过程的局域热力学路径和宏观热力学路径。

The acquisition of friable calli and the establishment of the cell suspension cultures of tobacco NC89 leaf were studied.

研究表明细胞分裂素与生长素浓度的比值高时，有利于芽的分化，相反细胞分裂素与生长素浓度的比值低时，有利于根的分化。

The photocatalytic behavior of such prepared nano-Cu2O was evaluated by the decomposition of acidic fuchsine solution under daylight. The influence of glucose addition and the initial concentration of acidic fuchsine solution as well as the catalyst reusability were examined.

用它做催化剂在日光作用下对酸性品红溶液进行了光催化降解实验，研究了葡萄糖添加浓度、酸性品红溶液的初始浓度和催化剂的重复使用对光催化性能的影响。

A 99.1% photocatalyzed degradation was achieved with 6mg/L initial concentration of acidic fuchsine solution in 2.5h added with 7g/L of glucose. This photocatalytic degradation remained with 75% after the catalyst repetitively used for 6 times.

结果表明分散剂葡萄糖浓度为7g/L时制得的纳米Cu2O光催化活性最佳，当酸性品红溶液的初始浓度为6 mg/L时，2.5 h降解率高达99.1%，重复使用6次后其降解率仍可达到75%。

The effect of initial pH, temperature and N263 concentratio n on extraction of fucoidan was investigated. It has shown that temperature and initial pH of the solutions have no great influences on the extraction of fucoid an, and when N263 concentration is low, an increase in the concentration incre ases the extraction of fucoidan.

对影响萃取褐藻糖胶的水溶液初始pH、温度及N263浓度等因素研究结果表明，N263浓度是影响褐藻糖胶萃取的主要因素，而初始pH、温度等的影响不大。

Gas concentrations should be monitored at intervals during the fumigation and, if necessary, additional fumigant added to maintain the required concentration.

熏蒸期间，应在不同时间间隔监测熏蒸剂的浓度，并根据需要补充熏蒸剂，以达到所要求的浓度。

In addition, the effects of temperature and concentration of sulfuric acid on the concentration of LA and 5-hydroxymethyl furfural were shown.

实验考察了不同温度和硫酸浓度对葡萄糖分解的主要产物5-羟甲基糠醛和乙酰丙酸浓度的影响。

The effect of several variables such as temperature, concentration of acetic acid and initial concentration of xylose on furfural yield was studied.

考察了催化剂浓度、温度和木糖溶液初始浓度对糠醛收率的影响。

The process of powder soution preparation operates each soution tank gade, they are bocked off. it coud assure the best reaction time invariabeness consistency of every soution tank, avoid any direct touch of prefabricated tank iquid storage tank, the automatic contro system ised with eve sensor, to gain the exactitude consistency. When the eve reaches ow, the soenoid vave open, the powder feeding started. Opposite, the eve reaches high, the circe process stop.

干粉溶液制备过程是通过各个溶液槽分级逐步完成的，溶液槽之间隔开，保证每个溶液槽内的最佳反应时间和恒定浓度，避免在预制槽和药液储存槽之间有任何直接通路，自动控制系统与储存槽上的液位控制器相连，一旦液位达到低位，触发进水电磁阀打开，干投机启动，投加量安装水量设定，以获得精确浓度，当液位达到最高点，此循环过程就停止，当然搅拌器还按设定时间继续工作。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。