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- The number of rhizobia decreased with the pH value of soil reducing. 在不同酸性土壤悬液中,土壤悬液酸性降低,根瘤菌数目随之减少。
- pH values of soils 土壤pH
- THE USE OF A NEW MIXED INDICATOR FOR DETERMINATION OF pH VALUE OF SOILS 测定土壤pH的新混合指示剂及其使用
- For cast iron pumps, the PH value of medium ranging within 5-9. 铸铁材质的泵,介质PH值在5-9范围内。
- Effect of pH value of soil on strength increasing of the stabilized soil 土样pH值对固化土抗压强度增长的影响研究
- There is a correlation between available silicon content and pH value or clay content of soils,except it is influenced by pedogensis. 分析土壤有效硅与土壤理化性状的相关关系,得知有效硅含量与土壤的pH及粘粒含量达极显著和显著水平,此外,有效硅含量还与成土过程有关。
- Effects of pH values of solution, polycondensate's component and conformation in solution on the catalytic activity of SFMA were also studied. 缩聚物主链上的胺基能与水杨酸基的羟基发生协同作用。对缩聚物的组成及其在水溶液中的构象对催化活性的影响也进行了研究。
- The effect of soil pH value on the bioavailability and fractionation of rare earth elements (REEs) in wheat seedling ( Triticum aestivum L. 采用盆栽实验,研究了土壤酸度对稀土元素在小麦体内的生物可利用性及分馏效应的影响。
- By adjusting the pH values of the solution, a series of luminescent CdTe quantum dots were prepared under different reaction time based on the Ostwald Ripening theory. 采用奥斯瓦尔德成熟理论控制回流时间,在不同的反应温度和pH值条件下合成巯基丙酸修饰的荧光 CdTe量子点。
- The physical and chemical characteristic of soil (pH value, soil mechanical component, salt content) would directly influence the ,rowth and distribution of moss. 2)土壤的理化性质(PH值、土壤机械组成、盐分含量)直接影响苔藓的生长和分布;
- pH value of soil 土壤pH值
- The applied science of soils in relation to crops. 土壤学和作物相关的应用土壤学
- A colorimetric method of new miked indicator with a wide range and clear changes of colour for pH values of plant sap was studied and compared with the electrometric method. Using leaf samples from various trees of several ranges in pH. 研究了一个测定植物汁液pH值的范围广、颜色变化清楚的新混合指示剂比色法。 这个方法用属于几个pH范围的树叶样品与电位计法作了比较。
- There are some clods of soil on the mat. 垫子上有些土块。
- The contents of TOC, DOC, POC and PEC are generally higher in the samples of wet-season than that in the dry season. Furthermore, the contents of TOC and DOC show certain level of negative relationship with the pH values of rainwater samples. 雨水中的TOC、DOC含量以及雨水颗粒物的POC、PEC含量均显示出季节性变化的特点。
- The effects of operating pressure, temperature, and concentration and pH values of feedwater on PFI membrane performance were tested, at the same time, resistance to oxidation and chloridization, and stability of long time storage were also tested. 本文对操作压力,供料液温度,供料液浓度和pH值等对PFI型膜性能的影响进行了试验,同时考查了其抗氧化性,抗氯性,长期贮存和长期运转的稳定性。
- This kind of soil contains much alkali. 这种土壤含碱丰富。
- However,when the mean values of each group were analyzed by Duncan's multiple range tests,as a result,there is significant difference in pH values between the dead and the control(P < 0.05). 经Ducan式多重范围比较;临近死亡组与对照组血清pH值存在显著性差异(P<0.;05);
- The average content of each soil is 605. 1, 577. 5, 357. 0. 271. 3 and 149. 2mg/kg respectively. There is a significant positive correlation between available sillcon content and pH value and also clay content of soil. 有效硅平均含量分别为605.;1、577
- It's rich there because of the fertility of soil. 因为土地肥沃,那儿很富裕。