壳

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。

The double volute with 180° symmetry is widely used in large centrifugal pumps.

180°对称分布的双蜗壳结构在大型离心泵中应用广泛，但目前对双蜗壳内部流动规律的数值研究还相对较少。

Pump pump body is the center of the structure, also called the volute or pump shell, and its type is also more.

水泵泵体是泵结构的中心，也叫蜗壳或泵壳，其型式也比较多。

From the experimental results, a conclusion can be reached that the practical flow in the volute is rather different from the theoretical result.

实验结果证明，蜗壳的实际流动情况同理论设计有着相当大的不同，蜗壳的不对称结构导致了其流动周向参数分布不均匀，并且影响了叶轮扩压器内的流动，导致整机工作性能下降。

Shenzhen Technology Co., Ltd. formerly Richwoodwatchcase Hardware Factory was founded in 1992, the register in 1999 for the Limited, is a set design, production and sale of stainless steel, copper, aluminum, titanium, etc. Materials watchcase and processing of various professional hardware processing enterprises.

深圳市嘉丰科技有限公司前身行行五金表壳厂创立于1992年，1999年注册为有限公司，是一家集设计、生产、销售不锈钢、铜、铝、钛等材料表壳及代加工各种五金件的专业加工企业。

The company has experienced a number of watches and clocks, surface design, development and production talent, there is from the casting, watchcase into table production to the production of all production processes and equipment, can be independent from watchcase production, production to export table into the various aspect, the production of products to meet the various needs of the market., the current U.S. product categories are: all kinds of couple tables, cartoon form, chain belt forms and electronic forms, as well as the middle-grade nail UP really Pui, false bay, corrosion surface , products are exported to the United States, Europe, Australia, the Middle East, Southeast Asia and other countries and regions.

公司拥有一批经验丰富的钟表，表面设计，开发及生产人才，有从铸造，表壳生产到成表生产的全部生产流程及设备，能独立完成从表壳生产，成表生产到出口的各个环节，生产的产品能满足各种市场的需求。，目前我们的产品类别有：各种情侣表，卡通表，链带表及电子表以及中高档UP钉、真贝、假贝、腐蚀表面等，产品远销美国，欧洲，澳大利亚，中东，东南亚等国家和地区。

Weak formulation of mixed state equations including boundary conditions are presented in a cylindrical coordinate system by introducing Hellinger_Reissner variational principle.

从Hellinger_Reissner变分原理出发，在柱坐标系中，导出圆柱壳的弱形式混合状态方程和边界条件，联用状态空间法给出叠层柱壳的解析解，此法使得求解该类问题的形式得以扩大和统一。

The well-grown cells of the third passage were co-cultured in vitro on the nano-CS/COL scaffold. Taking simple nano-CS/COL scaffold material as control, the histocompatibility of scaffold material and cells were comprehensively evaluated by cell adherence rate, growth curve, cell activity and cycle, and scanning electron microscope observation.

取生长良好的P3代，与纳米壳聚糖-胶原纤维支架体外联合诱导培养，以单纯纳米壳聚糖支架材料为对照，通过细胞贴壁率、生长曲线、细胞活力及周期、扫描电镜观察综合评价材料与细胞的相容性。

Effects of alkali concentration, extraction temperature, ratio of solid to liquid and extraction time on yields of xylan were analyzed.

以稻壳为原料，采用制备综纤维素再碱提取的方法，分析了不同碱溶液浓度、温度、固液比和时间对稻壳半纤维素中多戊糖得率的影响。

After marking LMWC with FITC, the average molecular weight of HMWC and LMWC were determined by HPLC. The average amino group content of chitosan was determined by metachromatic titration using Xylidine Tonceau 2R C.I.

方法采用NaNO2氧化法降解，将HMWC降解为合适分子量的LMWC，以FITC标记壳聚糖后，用凝胶渗透层析的方法测定壳聚糖的分子量。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！