脱壳

Deacetylation of chitin was studied under different conditions, such as different temperature, time and concentration of alkaline.

在甲壳素脱乙酰化反应的研究中，分别采用不同的反应条件：NaOH溶液浓度分别为40％和50％，温度分别为80℃，90℃，100℃，110℃，120℃，反应一定时间，测试产物壳聚糖的脱乙酰度。

Now the LY-02 cocoanut charcoal has been used in ten-odd domestic gasoline sweeteners,and it has been running for 15 months without altering and regenerating in Shanghai Petroleum Refining and Chemical Company Ltd.

LY-02型椰壳活性炭目前已在国内10余套汽油脱臭装置上使用，其中在上海石油化工股份有限公司已运行15个月尚未切换再生，精制汽油硫醇含量小于2 μg/g，硫醇脱除率大于97%。

Degree of deacetylation of the three different chitosan are determined by acid -base titration or acid -base conductometric titration.The MW of chitosan I and II by viscometry is 1.0 X 106and 9.5 X 105,respectively.

分别采用酸碱指示剂滴定和电导滴定法测定了壳聚糖的脱乙酰度，后者测定结果大于前者；应用粘度法测定原料壳聚糖Ⅰ和Ⅱ的粘均分子量分别为：1.0×10~6、9.5×10~5。

Chitooligosaccharides was obtained from crustaceous materials, such as shrimp and crab by deacetylation and degradation, and it had a wide range of applications in medicine.

壳寡糖是由虾蟹壳等甲壳类物质通过脱乙酰基与降解而得到的寡糖，它在医药领域有广泛的应用。

The results showed that the chitosan had the viscosity of 2886.7 mpa · s and the deacetylate rate up to 97.17% under the optimal reaction condition: temperature 50℃, 3 h reaction period, and 50% NaOH.

结果表明，用超声波制备高黏度壳聚糖的最佳反应条件是：反应温度为50℃，反应时间为3h，NaOH溶液的浓度为50％，可以得到黏度为2886.7mpa·s、脱乙酰度达97.17％的壳聚糖。

The properties and structures of these films depend on their molecular weght, degree of deacetylate, the solvent, the temperature to remove the solvent from the chitosan solution.

壳聚糖膜的结构和性能取决于壳聚糖的分子量、脱乙酰度、溶剂以及除去溶剂的方式。

But getting them out of their shells is tiring without machion. In 2001, a Canadian inventor Jock Branders Brandis designed the hand out an hand-powered peanut sheller for a village in Mali.

不过在没有机械帮助的情况下脱去花生壳是件很麻烦的事。2001年，加拿大发明家Jock Brandis为马里的一个小镇设计了一种手动花生剥壳机。

Crustal original and crustal\|mantle original type are located at the Yinggehai basin of the northwest margin and controlled by the diapirs up-invasion and thick marine calcic sand shales. Volcano-mantle original type is most located at the Qiongdongnan basin of the northeast margin and the Pear River Delta. Furthermore, the accumulation and migration of CO2 and oil gas of these types of CO2 are controlled by the exhaustion of mantle magma and the transportation of discordogenic faults.

壳源型和壳幔混合型CO2富集于西北边缘莺歌海走滑伸展型盆地，受控于海相含钙砂泥岩与泥底辟热流体上侵活动的物理化学综合作用；火山幔源型CO2则主要展布于东北边缘琼东南及珠江口断陷裂谷盆地，其火山幔源岩浆脱排气活动与深大断裂导气输送作用的配置，控制了这种类型CO2的运聚乃至富集成藏过程。

The author has made a detailed analysis of the satellite gravity data over Wenchuan, Motuo, Zhongba, Jiashi and Taiwan Areas in China, where earthquakes more than magnitude of 6 took place in recent several decades. It is surprising that the gravity field patterns over these areas are extremely similar, which is characterized by the following features:(1)Paired positive and negative anomaly.(2)Epicenters usually were located between the pairs where the gradient of gravity field was the steepest.(3)The value of positive peak increased and its width decreased at higher order field.(4)The distance between positive and negative peaks varies in different tectonic background.(5)Different styles of crustmantle material diapirism in different stress fields. Geologically, rheological diapirism of high density crustmantle material could be a reasonable explanation to this unique pattern.

笔者详细分析了中国汶川、墨脱、仲巴、伽师和台湾等地的卫星重力资料(这些地区在近几十年来均发生过6级以上的大地震)，惊奇地发现，在这些地区，卫星重力场的样式具有极大的相似性，它们表现在：(1)卫星重力场的正负异常值成对出现；(2)震中通常位于重力场峰值间的陡梯度带；(3)由低阶到高阶的重力场正异常的峰值增大而宽度变窄；(4)正、负峰值间的距离随所处的大地构造背景而变；(5)不同应力场壳幔物质底辟的样式不同，从地质上看，高密度壳幔物质的流变底辟作用，可以合理地解释这种独特的样式变化。

Main products includes: XZ42 series moulding machine, Z94 series full automotive core-shooting machine, Z95 series full automotive shell core making machine, ZHTO series core-shooting machine, ZJQ series tilt able pouring machine, core-shooting machine special for producing braking disc, as well as moulding plate pattern, care-shooting box, shell mould/core pattern/box, and so on.

主要产品有：XZ42系列水平分型脱箱射压造型线、Z94系列全自动射芯机、Z95系列全自动壳芯机、ZH70系列射芯机、ZJQ系列可倾式浇注机、刹车盘专用射芯机及型板模、射芯模、金属型和壳模等。

I am sure after a few weeks of adaptation and familiarization I will have no difficulty in functioning on a daily basis in an English speaking society or in participating fully in graduate studies.

在大学的三年的学习生活不仅给予我自身的充实，更重要的是磨练和培养了我较强的自觉能力和严谨，踏实的作风以及不怕困难的精神，对未来充满了信心！

As the first volcanoes erupted, one of the gases that bellowed out was steam.

在第一批火山喷发时，喷出的气体之一就是水蒸汽。