成胶的

Prior to the 17th century it was made of wood or wool in a leather cover.

球：我们试图击进洞里的圆形物体。17世纪之前，球用木头或羊毛制成。17世纪后，人们把羽毛煮沸、压缩，然后缝制在皮封面内。19世纪50年代发展成古塔胶球（或与杜仲胶其它物质的混合物），20世纪，这种球的核心包覆条状橡胶。

Part one Isolating, culturing, chondroblast induction and evaluation of human MSC in vitroObjective:To examine the property and proliferation ability of primary culturing MSC ,mvestgate the effect of lightly centrifugation and chemical definition medium to induce MSC differentiate into chondroblast.

结果：原代骨髓基质干细胞易于体外培养，增殖旺盛；经轻度离心和化学限定培养基诱导后细胞呈高密度生长，仍保持较旺盛的增殖能力，细胞转化成圆形肥大细胞，甲苯胺蓝染色显示软骨细胞外基质 v的特异性异染，11胶原蛋白免疫细胞化学染色呈强阳性，BT干CR鉴定显示＊胶原mRNA丰富的表达。

Through the methods of polarizing microscope and cathodoluminescence, the diagenesis of Late Carboniferous phylloid algal reefs in southern Guizhou is studied, which indicates diagenesis are mainly of bio-binding and baffling actions, micritization, cementation, compaction-pressure solution, fracture, recrystallization and dissolution in type.

东北大学资源与土木工程学院，沈阳110004通过偏光显微镜研究和阴极发光技术，对黔南晚石炭世叶状藻礁灰岩的成岩作用做了详细研究，认为礁灰岩主要成岩作用类型有：生物黏结障积作用、泥晶化作用、胶结作用、压实压溶作用、破裂作用、重结晶作用和溶解作用等。

Ceramic-veneer Composites is a three-layers plywood prepared by heat pressing, which composes of ceramic-veneer on the surface and unworked veneer inside. Ceramic-veneer is a material prepared by Sol-Gel method and Vacuum-Pressure method, and constitutes with veneer and ceramic emulsion.

摘 要：陶瓷化单板表层复合材料是以陶瓷化单板为表层材料，未处理木材单板为芯材，经热压工艺制备而成的三层胶合板；陶瓷化单板是以木材单板为基材，陶瓷前驱液为浸注剂，采用溶胶-凝胶法经真空加压浸渍处理而成。

It's as if you had a nice pearl necklace of DNA and RNA and protein and you clumped it together, drenched it in glue and then dried it out, says Worobey.

这就像你有遗传由DNA、RNA和蛋白质穿成的珍珠项链，并且你把它们拧成一团了，把它们泡在胶中，然后晾干。

In electronic engineering, we usually have to bond a micro-strip board to a metalcarrier in order to provide proper stiffness, thermal conductivity and electrical conductivity, thus to make general handling,solder stencilling, pick and place of components be easier, and prevent the warping or distortion of the board during soldering.

林伟成，微带板与金属载体间的大面积焊接及胶接方法工程中常常需要把微带板和金属载体焊接或胶接起来，以获得合适的刚性、电导率和热导率，从而使丝网印刷、元器件贴装等工艺过程变得更加容易。并防止焊接过程中微带板的翘曲和变形。

On the stickers together, forming a single punch , two-sided steam beads membrane, PE stretch¤(Protection of membrane, membrane bundle box), EPE EPE original volumes, plates, tubes and their positioning rod production packaging design, PP hollow board and its turnover boxes, various types of composite conductive , anti-static packaging materials, such as the production-oriented manufacturers.

本公司位于深圳宝安区龙华龙军工业区，公司成立于2002年，是专业从事生产不同类型的高温胶贴、（EVA、PVC、橡胶、海棉……）的上胶贴合、冲压成型单、双面汽珠膜、PE拉伸缠绕膜、EPE珍珠棉原卷、板材、管棒及其定位包装设计制作、PP中空板及其周转箱，各类复合导电、抗静电包装材料等的生产型厂商。

According to experience of similar material research, a new similar material, iron barites sand cementation material, has been developed through hundreds of compounding test.

借鉴前人的经验，通过大量的配比试验，研制出一种新型的相似材料铁晶砂胶结料，这种材料用铁精粉、重晶石粉、石英砂作为骨料，松香、酒精溶液作为胶结剂，石膏作为调节剂混合而成。

Now for the uncertain bit. When you add the Mentos, the arabic gum and the gelatin start to dissolve. The CO2 is attracted to the rough surface, which is a perfect nucleation site.

至於无法确定的部分是，当你加入曼陀珠时，阿拉伯胶和动物胶会开始溶解，二氧化碳会被曼陀珠粗糙不平的表面吸引，这种粗糙的表面最适合进行成核作用，因此上面会形成？

K-M composite ceramic membrane tube supported TiO〓 membranes have been prepared by solgel technique and characterized by mercury intrusion, SEM and IR techniques.

采用溶胶—凝胶技术在K-M支承体上制备了负载型TiO〓膜，利用压汞、SEM、IR等实验手段对其进行了表征，考察了溶胶浓度、粘度、浸涂时间和次数等条件对成膜过程和成膜性质的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。