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Results The expression of ADAM19 are mainly in the cell membrane, plasma and column of cytotrophoblast; The expression of ADAM19 is mainly located on cytotrophoblast during first trimester of pregnancy, and on syncytiotrophoblast in second and third trimester.

结果ADAM19的表达主要集中在滋养细胞的细胞膜、细胞质中和细胞滋养层柱细胞中；早孕绒毛中，ADAM19表达主要集中于细胞滋养细胞膜，在晚孕期胎盘，ADAM19主要表达于合体滋养细胞膜。

After extraction by ethanol and purification by cationic ion-exchange column, a method of using reversed-phase high-performance liquid chromatography and precolumn derivatization with o-phthalaldehyde and 9-fiuorenylmethylchloroformate is employed for determination of free amino acids in tobacco . This method assures that amino acids with amino and imino groups can be determined simultaneously. The results of duplication experiment and recovery experiment are acceptable.

本试验用乙醇提取烟叶中的游离氨基酸，并用阳离子交换树脂纯化，再用邻苯二甲醛、氯甲酸芴甲酯联合柱前衍生、反相高效液相色谱分析测定了烟叶中的游离氨基酸，该方法能同时测定烟叶中的带氨基和亚氨基基团的氨基酸，并且分析方法的重现性和回收率均令人满意。

According to the distribution rule of interbedded drift angle in buildings and variational rule accompanying change of stiffness characteristic value, the paper puts forward the advice about how to differentiate normal structure story in structure design drawings and the influence factor which should be considered. The author also advances his opinion and suggestion about how to judge the rationality of stiffness arrangement of frame-column and shear wall in frame-shear structure.

就层间位移角在楼层中的分布情况和分布规律以及随刚度特征值变化的规律，提出了在结构施工图设计中如何划分结构标准层的建议和应考虑的影响因素：并就判断框—剪结构中框架柱与剪力墙刚度分配是否合理的具体方法提出了自己看法和建议。

Determination of organic mercury was based on volatilization of different compounds from aqueous media, purging to an adsorbent trap, release from that trap onto an isothermally operated GC column, and detection by AFS.

有机汞的测定基于不同组分从液体中的挥发后，通于吸附装置，从该装置释放后通入等温操作GC柱中，而后由AFS测定。

Fruit linear siliques, strongly latiseptate, sessile; valves with an obscure midvein, smooth, longitudinally striate; replum rounded; septum complete, membranous, with a distinct midvein; style slender, to 1 mm; stigma capitate, entire.

果线形的长角果，强烈具宽隔膜，无梗；裂爿具不明显中脉，滤波，纵向具条纹；假隔膜绕行；完全的隔膜，膜质，具一离生中脉；花柱纤细，对1毫米；柱头头状，全缘。

C18 esterified silica monolithic column emerging from chromatogram realm was made by use of solid-phase extraction medium material in μ-TAS. Several simple solid-phase extraction pretreatment units were set up to preconcentrate dobutamine hydrochloride which was detected by dobutamine hydrochloride-KMnO4-Luminol chemiluminescence system.

以改性C18反相硅胶整体柱为微流控芯片分析系统中固相萃取介质材料，构建不同功能单元的样品预处理微分析系统，实现了血清样品中痕量盐酸多巴酚丁胺的富集。

The numerical results show that serious errors exist in the substructural analysis for the hybrid structure,and the global analysis is necessary for the hybrid structure under the excitation of static loads and seismic loads.

需对其进行较精确的分析。在以往传统结构的计算分析中，为了简化计算，实际工程中往往将结构分开进行分析，如分为上部结构与下部结构，屋盖结构与梁柱体系等。

We researched migration and transformation of COD in vadose zone , and put forward a mathematical model of the process.

采集一定浓度的有机物废水，在试验室内进行了静态吸附、静态降解和动态土柱试验，对COD在包气带中迁移转化规律进行研究，提出了描述COD在包气带中迁移转化规律的数学模型。

Dynamic head-space injection systems include a sparging device by which volatile substances in solution are swept into an absorbent column maintained at a low temperature.

动态顶空进样系统包含鼓泡装置，通过这个鼓泡装置，溶液中的挥发性物质进入维持低温的吸附柱中。

In Gas Liquid Chromatography a mixture of vapors is carried in a stream of helium through a column.

在气液色层分析中，蒸气的混合物由源源不断的氦气带入柱中。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。