She frowned with concentration.
她全神贯注，紧锁双眉。
In ordinary life, we tend to equate focus with concentration.
在日常生活，我们常把焦点等同于专心。
Symptoms of BPD can also interfere with concentration, which can lead to poor work performance.
BPD的症状也会影响精力集中，让工作表现变差。
If you have trouble with concentration when you are reading or watching TV, are crying easily, or feel very tired, you may have depression.
如果你在阅读或者看电视的时候注意力集中方面有困难，易哭或者感觉很累，你可能是患了抑郁症。
Most people believe they have a problem with concentration.
大多数人认为他们集中注意力有问题。
Writers need to work with concentration for long periods of time.
写作者需要长时间的专注工作。
The inhibition ratio had dose-dependent effect with concentration.
扭体抑制率与浓度存在剂量依赖关系。
When we do something with concentration and spontaneity, then the result comes out perfect.
我们集中注意力，自自然然做事的时候，结果才完美。
The biocontrol effect improved gradually with concentration of the aseptic filtrate solution.
防效随滤液浓度的增加而提高。
The method is compatible with concentration detection of diethyl ketone in the air at a workplace.
本方法适用于工作场所空气中二乙基甲酮的浓度测定。
Zhuguang Massif is an area with concentration occurrence of granite-type uranium deposits in China.
诸广岩体是我国花岗岩型铀矿床的集中产出区。
The glabridin retention increased with concentration and pressure when they were low, but declined when they became higher;
光甘草定截留率在低压低浓度下随压力及浓度的升高而升高，在高压高浓度下却呈现下降趋势；
The variance of the shape and size with concentration for the mixed micelles of cationic anionic surfactants at high concentration has been studied.
本文研究高浓度区正、负离子表面活性剂混合胶团的形状及大小随浓度的变化规律。
A new study shows that subconscious signals interfere with concentration, causing people to become easily distracted and falter on even the simplest of tasks.
一份最新的研究表明：潜意识会干扰你的注意力。即使你处理的是简单的事情，它也能使你分心而无法顺畅的完成任务。
The business of fruit is a respect of, the business of flower is sweet, but lets me do foliar business, the leaf hangs green shade humbly and with concentration.
果实的事业是尊重的，花的事业是甜美的，但是让我做叶的事业罢，叶是谦逊地专心地垂着绿荫的。
It was indicated that psoralen had an obvious activation on tyrosinase activity and synergistic effect was significant, but the relationship with concentration was nonlinear.
结果表明，补骨脂素对酪氨酸酶有明显的激活作用，但是不随浓度的增加呈线性变化，与助剂复配的协同效应显著。
Litchi was sprayed by sucrose-based polymers with concentration of 2%. The activities of Superoxide dismutase(SOD), Peroxidase(POD)and Catalase(CAT)in the leaves of litchi were investigated.
用2%浓度的蔗糖基聚合物处理妃子笑荔枝，研究其对荔枝叶片的超氧化物歧化酶（SOD）、过氧化物酶（POD）、过氧化氢酶（CAT）活性的影响。
The preparation process is as follows: rose is dried and the dried rosebuds are ground into powder; ethanol with concentration of 50 percent to 95 percent is used for extraction for 3 times;
制备过程为：干燥玫瑰花，干燥玫瑰花蕾研磨至粉末状，用50-95％乙醇浸泡提取3 次，过滤合并3次提取液；
In accordance with the market demand of sodium sulphide at home and abroad in recent years, a new product, the high purity white sodium sulphide crystal with concentration of 45% Na_2S was prepared.
针对近几年国内外硫化碱市场需求，研制出了一种硫化钠质量分数为45%左右的白色高纯结晶硫化钠新产品。
With concentration of brine increasing, content of sodium chloride in fish-muscle notably increased and content of soluble protein and amino nitrogen in pickling solution significantly decreased.
随着盐水浓度的提高，鱼肉中氯化钠含量显著上升，盐卤中可溶蛋白和氨基态氮含量明显降低。
With concentration of brine increasing, content of sodium chloride in fish-muscle notably increased and content of soluble protein and amino nitrogen in pickling solution significantly decreased.
随着盐水浓度的提高，鱼肉中氯化钠含量显著上升，盐卤中可溶蛋白和氨基态氮含量明显降低。
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