石膏的

But the result of improvement soil translated alkaline soil into alkalier soil. Not onlu it is unavoidable and subsisted of stabilization in commix tier of gypsum, but also it destroyed direct improvement process. It is imported find what solved seepage problem of gypsum in the study. In configured duality structure of improvement soil, it needs abundance seepage gypsum in commix tier into noncommix tier in order to losing seepage capacity reduce in all deepness of improvement soil.

碱土改良过程中石膏渗漏损失最高可达到石膏施入量的40%以上，而改良结果碱土只转化为重碱化土；在石膏混合层内，它是一种不可避免的、稳定存在的且直接破坏土壤改良进程逆流；因此解决石膏渗漏问题亦是在本文研究工作中的重要发现：配置二元结构改良碱土中，正需要石膏混合层中大量石膏渗漏，以改良非石膏混合层，并使整个计划改良深度内的渗漏损失降为零。

Deliquescence of calcium sulfite under various conditions including temperature,pH,dissolving time,stirring rate and initial quantity was investigated in experiment.

亚硫酸钙的溶解浓度对氧化速率有非常重要的影响，课题主要研究CaSO3的溶解特性，描述了CaSO3在不同条件下(温度、pH、溶解时间T、搅拌速度、初始加入量等)溶解量的变化规律，进而找出CaSO3的最佳溶解条件，以达到提高氧化速率及石膏的生成率，防止堵塞和结垢的目的。

Single factor test was employed to investigate some factors effecting the compressive strength of hydratedα-plaster of Paris which was made by Aqueous Salt Solution Method in atmospheric pressure such as crystal modifiers,aqueous salt solution,emperature of water to washα-hemihydrate gypsum powder,product drying temperature,product grain size.

采用单因素实验考察了媒晶剂、盐介质、洗涤水温度、产品干燥温度、产品粒度等因素对常压盐溶液法制备α-半水石膏的抗压强度的影响，实验结果表明：当媒晶剂为柠檬酸钠与Al3 +等的复合物(占盐溶液的质量百分比为1.0 %)、盐介质为15 %的KCl水溶液、洗涤水温度在98℃以上、产品干燥温度为110 - 130℃、产品粒度控制在7- 4 μm时，产品抗压强度可达4 4MPa

Influenced by tectonic movement, there were no sediments in the area from Oligocene to Miocene. Appearance of marlite in the Pliocene, especially in Yaqueling region, proved localized depositing environment forming, for which there had only few amount of terrigenous matters to supply. Sedimentary facies association of alluvial fan, fan delta and inland lake appeared at the early and middle stage of lower Pleistocene, and association of fan delta and inland lake appeared at the later stage of lower Pleistocene and the early stage of middle Pleistocene. Net-veined laterite appeared at the top of lacustrine deposit, which reflected pedogenesis taking place after the end of deposition. Such evolution history proves that there had no lager river system traversing this area before the early stage of middle Pleistocene.

对于江汉盆地西缘宜昌地区来说，其沉积及古地理演化表现为：早白垩世为受天阳坪断裂控制的内陆湖泊沉积环境，沉积中心在天阳坪断裂的北侧，此时几乎不存在来自黄陵地区的水系；晚白垩世同样为受断裂控制的内陆湖盆环境，但湖盆面积扩大、断裂活动减弱，且后期出现成化湖相沉积；第三纪早期盆地由断陷盆地转变为坳陷盆地，同时石膏的出现代表了局限咸化湖盆的存在；渐新世—中新世，受构造影响，缺失该时期的沉积；上新世时在鸦鹊岭一带出现的泥灰岩沉积反映了陆源物质供应不足的局限沉积环境的存在；早更新世早中期为冲积扇—扇三角洲—内陆湖泊沉积，早更新世晚期—中更新世早期为扇三角洲—湖相沉积，后期出现沉积结束以后的网纹红土化作用。

Old English, denoting a bandage spread with a curative substance, from medieval Latin plastrum (shortening of Latin emplastrum, from Greek emplastron 'daub, salve'), later reinforced by the Old French noun plastre.

①石膏：与水混合后变硬的石膏材料，用于固定或制作身体某部的印模，如牙科石膏或煅石膏；②硬膏〔剂〕：可涂敷于皮肤的糊状混合物，在体温的热度下有粘性。

Full of creative art tools, four unique game modes, tons of unlockable hidden items and a cast of hilarious characters, Etch A Sketch is innovative fun for the whole family!

充满艺术创作的工具，四个独特的游戏模式，玩家吨隐藏物品和石膏的欢闹的字符，蚀刻素描是创新的乐趣整个家庭！

To base on domestic and oversea productive technology and principle of gypsum, to combine with development of modern resin, and to improve traditional productive technology exploratively, the aim is to analyze influential factors in the course of synthesis of hemihydrated gypsum, enhance purity of hemihydrated gypsum on productive technology, synthesize a kind of dental gypsum and research preliminary on these existing questions about insufficient mechanical strength and worse surface hardness of present gypsum of molding materials to certain extent.

目的：基于周内外主要石膏模型材料生产工艺及原理，结合现代树脂类材料发展趋势，对传统生产工艺进行探索性改良，旨在对半水石膏合成中的一些影响因素进行分析，于制作工艺方面提高石膏纯度，使合成的石膏模型材料在一定程度上能改善现代石膏模型材料存在的机械强度不足和表面硬度较差的问题。

The compressive strength's difference of autoclaved materials samples before or after admixed gypsum and effect of gypsum amount on compressive strength of the autoclaved samples were studied.

石膏的加入明显改善水泥性能的作用机理及其存在形式已经明确，它作为蒸压硅酸盐制品的激发剂，以及在蒸压硅酸盐制品中的存在形式也有大量研究[1，2]。

The Company was founded in 2000, and give full play to the advantages of local resources, is a professional operation of Chinese herbs, gypsum board, gypsum powder, gypsum powder caulking production, marketing, and processing of large companies as a whole, the existing annual production capacity of 300,000 tons of gypsum ore 2, 160 person staff, 40 technical staff, senior management 6, the total assets of 8,000,000 yuan, covers an area of 300,000 square meters, annual production of a variety of standard gypsum powder 90,000 tons.

本公司始建于2000年，且充分发挥本地的资源优势，是一家专业经营中药材、石膏板、石膏粉、嵌缝石膏粉的生产、销售、及加工为一体的大型公司，现有年产30万吨石膏矿二座，员工160人，技术人员40名，高级管理人员6名，总资产800万元，占地30万平方米，年生产各种标准石膏粉9万吨。

The gypsum precipitates out of water in the cave, creating these subterranean forms over time.

石膏的沉淀物浮出洞穴的水面，创造这些地下的结构需要很长的时间。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。