查询词典 mean change

To study the effect of papermaking wastewater irrigation on soil hydrological properties in saline reed field, different wastewater irrigation frequencies were employed in the saline reed field of Yellow River Delta. Soil infiltration course and hydrological properties were determined in field and laboratory. After wastewater irrigation, the change of the soil pH value, soil salt content and soil hydrologic-physical properties were observed. The results were showed that: 1 After wastewater irrigation, the mean reduction of soil pH value was 6.0%.

为研究造纸废水灌溉对黄河三角洲内陆盐碱芦苇地土壤水文特征的影响，通过设置芦苇地不同废水灌溉次数下的随机区组试验，采用田间测量土壤入渗过程和实验室内测定水文物理参数相结合的方法，分析造纸废水灌溉前后土壤pH值、含盐率及土壤水文物理参数的变化。

During support with the PUCA pump, mean arterial pressure, systolic blood pressure and diastolic blood pressure increased gradually and close to the baseline at the end of experiment. No significant change in platelet and plasma free hemoglobin were found during the whole period of the PUCA pump support.

成功的7只绵羊在支持期间血流动力学逐步恢复并趋向稳定，血压接近基线值；血小板和血浆游离血红蛋白在辅助期间无明显变化；肾、隔膜泵及导管均未见明显的血栓形成。

In a no overlapping generation population with selection, mutation、migration and random drift under consideration, two mathematical models presented in this paper might describe change of frequencies of multiple alleles at a locus and population mean of metrical characters resp.

在假定无世代重叠，群体内存在选择、突变、迁移，且考虑漂变效应的情况下，本文所构建的两个数学模型可分别用来描述一个座位上多个主基因频率或数量性状群体均数的动态变化。

However, such a combination does not mean the traditional graphics or simply just copy the misappropriation, but rather to knowledge and understanding of the traditional graphics, and on this basis, gradually digging, change and transformation of the traditional graphics, and allow traditional graphics into the design of a new creative point and inspiration point, thus mapping out Hwan viable model of modern Chinese symbol.

然而，这样的组合并不意味着传统的图形或干脆只复制盗用，而是知识和传统图形的理解，并在此基础上，逐步挖掘，变化和改造传统图形，让传统图形成一个新的创意点和点的设计灵感，从而设计出焕现代中国的象征可行的模式。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。