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- FVM is applied to the stream tubes, according to mass conservation principle and established the 2-D finite volume model in the contamination concentration field (CCF). 对河流污染物迁移扩散机理进行分析,提出将流管划分与有限体积法相结合的方法,利用流管求取河流流场,有限体积法求取污染物的扩散。
- chemical contamination concentration 染毒浓度
- Visual inspection can allow detection of gross contamination concentrated in small areas that could otherwise go undetected by sampling and/or analysis. 目检可以检测小面积积累的严重污染，但用取样和/或分析方法时，就检不出了。
- Modification of rinsing techniques by installing cascading or counter-current rinse systems increases the contaminant concentration. 安装了阶梯式装置或对流漂洗装置，可改进漂洗技术，把污染物的浓度提高。
- Research of oil contamination concentration influence coefficient 油液污染浓度影响系数的试验研究
- In general, the first contaminant concentration of rainfall runoff is high and the contaminant concentration is decreasing, with the time of rainfall prolonging. 一般规律是降水径流初始污染物浓度高，随着降水历时的延长，降水径流污染物浓度逐渐降低。
- Because the bilinear terms of which flow rate times contaminant concentration in mass balance lead to that the NLP problem is non-convex. An adaptive simulated annealing genetic algorithm is adopted to solve the problem according to its feature. 由于模型约束中的浓度乘以流量双线性项导致问题非凸，根据其特点采用自适应模拟退火遗传算法求解。
- With field observation data and a groundwater solute movement model, a case study was conducted to forecast groundwater level and contaminant concentration in groundwater at certain time and at given spot. 采用现场观测、测试、建立封闭圩区地下水溶质运移数学模型 ,以及实例分析相结合的方式进行 ,预测给定时间后某地点的地下水水位及地下水污染情况 ,用以指导类似圩区水利工程建设与管理。
- His area of concentration is nuclear physics. 他的专门研究范围是原子物理学。
- The drug affects one's power(s) of concentration. 这种药影响人精神不能集中。
- Abstract: Building ventilation is a primary determinant of indoor air quality in buildings as it impacts indoor contaminant concentrations and occupant comfort. 摘要： 建筑物通风是室内空气质量的一个决定因素，因为它影响室内污染物的浓度和居住者的舒适程度。
- There is a concentration of people in big cities. 大城市人口集中。
- He seized every chance to break out of the Nazi concentration camp. 他抓住一切机会从纳粹集中营跑出来。
- Experimental simulation on spatial optimum estimation method of contamination concentration in groundwater 地下水污染物浓度空间最优估值方法的实验模拟
- A state of mental concentration. 专心致志，全神贯注全神贯注的状态
- Exceptionally great concentration, power, or force. 特别强烈的程度，力量或动力
- Contamination can't be ruled out entirely. 污染是不能完全清除的。
- The brass surface must be free of contamination. 黄铜表面必须未经沾污。
- The POWs burst out from(of) that Nazi concentration camp one night. 一天夜里战俘们冲出了那个纳粹集中营。
- Such contamination has been extensively studied. 人们对这种污染进行了大量研究。
