碱性土

Second, artificial feeding stool: The milk-fed infants, stool or light yellow color was gray soil quality hard, neutral or alkaline reaction.

二、 人工喂养大便：以牛乳喂养的婴儿，大便色淡黄或呈土灰色，质较硬，呈中性或碱性反应。

Main contents of the course includes: related conceptions, matter of soil, soil texture, soil organic matter, soil humus, soil structure, soil moisture, soil air, soil acidity and soil alkalinity, soil colloid, cation exchange, soil former soil-forming process, soil classification, distributions and properties of soil great group in China (fores soil, steppe soil, main non-zonal soil, paddy soil, etc), soil erosion, soil contamination, soil utilization, conservation of soil resource, soil investigation, etc.

土壤地理学是地理科学专业的主要基础课程之一，是一门必修课程；要求掌握土壤地理学基本的理论、知识和方法；主要内容有：有关概念、土壤组成物质、土壤质地、土壤有机质、土壤腐殖质、土壤结构、土壤水分、土壤空气、土壤酸碱性、土壤胶体、土壤阳离子交换、土壤形成因素、土壤形成过程、土壤分类、中国主要土壤类型（森林土壤、草原土壤、主要的非地带性土壤、水稻土等）的分布及其性质、土壤侵蚀、土壤污染、土壤资源的利用与保护、土壤调查研究等。

The net cement with bentonite can form hydrogen key which can improve the felt of the systematic and are wail for eventual strength; The main mechanism of J-85 accelerator to accelerate concrete coagulating are in alkalescence condition to make aluminate and gypsum link and block the building of calcium and aluminium sulphate around cement granule; Polypropylene acid can improve early strength of cement through altering the thickness of hydroxide in cement grout.

添加膨润土后的水泥净浆中形成了氢键，提高了体系的粘结性，对后期强度发展有利； J-85速凝剂加速混凝土凝结的主要机理就是在碱性条件下，使铝酸盐和石膏结合，阻碍水泥颗粒周围的硫铝酸钙即钙钒石的生成，从而使水泥迅速凝结；聚丙烯酸通过改变水泥浆体中羟基的浓度从而提高水泥试块初期强度。

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。