树脂

The preparative technique of solid lubricant is cold-press sintering method.The micro-structure , friction surface, lubricant transfer film surface of base material was characterized by SEM; XRD was used to do phase analysis. The degrees of crystallinity of pure PTFE under the different conditions of water cooling, air cooling and furnace-varying cooling were made comparison by XRD. The thermal stability of pure PTFE and solid lubricant was analyzed by DSC-TG; The composition and valence state of elements in the surface of carbon fiber ,solid lubricant before and after friction test and lubricant transfer film were characterized by XPS; The frictional property of solid lubricant was tested by pin and disk test rig .

用SEM表征原料微观结构、摩擦表面及润滑转移膜表面形貌：用XRD进行原料物相分析，及比较水冷却、空气冷却、随炉冷却三种工艺条件下的纯聚四氟乙烯树脂的结晶度；用DSC-TG分析纯聚四氟乙烯树脂及固体润滑剂的热稳定性；用XPS表征碳纤维表面、固体润滑剂摩擦前后表面、润滑转移膜表面的元素组成、价态变化；用销盘式摩擦磨损试验机对固体润滑剂进行摩擦性能测试；采用专用的台架模拟试验机对固体润滑剂镶嵌轴承套与钢轴摩擦副间的摩擦磨损性能进行测定；用莱次偏光显微镜测试固体润滑剂的硬度；用材料试验机测试固体润滑剂的抗压强度等。

Chemical raw materials: The main raw materials include a variety of electroplating and metal surface treatment agent, such as acetic acid in the Czech Republic, nickel, copper acetate, nickel fluoride, cobalt sulfate, cobalt acetate, hydrofluoric acid, Yunnan tin sodium, Taiwan's Ya-tin pyrophosphate, oron the anion exchange resin, cation exchange resin, scale inhibitors, cleaning agents, detergents,the phosphating agent, plate washer water, with the exception of the Prince of water, oil derusting water, the United States steel at room temperature blackening agent, on behalf of behalf of the black-white (open cylinder agents, supplements), and alloys such as gun color.

六、化工原料：主要包括各种电镀原料及金属表面处理剂，如中捷的醋酸镍、醋酸铜、氟化镍、硫酸钴、醋酸钴、氢氟酸、云南的锡酸钠、台湾的焦磷酸亚锡、奥龙的阴离子交换树脂、阳离子交换树脂、阻垢剂、清灰剂、除垢剂、创辉的磷化剂、洗板水、除腊水、除油除锈水、美国的钢铁常温发黑剂、代白代黑、枪色黑合金等。

When the pine and cypress resin flows down the time, there is a small insect was accidentally Pine resin poured into the case, it will be sealed inside, and go through years, decades, centuries of time, they formed the amber.

当松柏树脂流下来的时候，有一只小昆虫不小心被松柏树脂淋到了的话，它就会被封在里面了，再经过几年、几十年、几百年的时间，就形成了琥珀。

Our company specializes in producing: cubic boron nitride grinding wheel; resin grinding wheel; CBN resin grinding wheel; plating wheel; bronze wheel; ceramic grinding wheel; micro-grinding wheel study; cylindrical grinding wheel; diamond polishing paste; diamond grinding head models of various specifications of diamond wheel.

本公司专业生产：立方氮化硼砂轮；树脂砂轮；CBN树脂砂轮；电镀砂轮；青铜砂轮；陶瓷砂轮；微钻研磨砂轮；外圆研磨砂轮；金刚石研磨膏；金刚石磨头等各种规格型号的金刚石砂轮。

Effects of various main factors on water absorbency were systemically investigated. The structure and surface morphology of the superabsorbent nanocomposites have been characterized by Fourier transform infrared spectroscope, X-ray diffraction and scanning electron microscope.

系统地讨论各影响因素对复合吸水性树脂吸水能力的影响，并通过傅立叶变换红外、X-射线衍射、扫描电子显微镜等物理手段来表征复合高吸水性树脂的结构、表面形貌等性能。

This paper investigates the catalysis of D-72 strong acid cation exchange resin on the synthesis of acetals,and systematically discusses the influence of reaction factors on the catalysis reaction.

研究了强酸性阳离子交换树脂对缩醛合成反应的催化作用，系统地探讨了各反应因素对反应的影响，研究发现，D-72强酸性阳离子交换树脂具有较高的催化活性，并能重复使用。

Then proper adsorbent and corresponding conditions or combining of different adsorbents should be chosen on practical needs.

所以，在实际生产中可根据需要进行树脂和相应的溶液条件选择或不同极性树脂的组合选择。

Heraeus Kulzer was on the forefront of the development of dental material being amongst the first to introduce commercially manufactured PMMA based denture materialspatented by Kulzer in the 1930 s, light cured composites, precious ceramics-bonding alloys, acrylic teeth, alginates and silicone impression materials and many more.

在齿科材料研发进程中，贺利氏古莎始终活跃在前沿阵地。例如：1930 年代，古莎首创商业化生产以 PMMA 为基质的牙托材料专利技术，以及光固化复合树脂、贵金属烤瓷合金、树脂牙、藻酸盐和硅橡胶印模材料等都在世界上处于领先地。

Heraeus Kulzer was on the forefront of the development of dental material being amongst the first to introduce commercially manufactured PMMA based denture materials-patented by Kulzer in the 1930's, light cured composites, precious ceramics-bonding alloys, acrylic teeth, alginates and silicone impression materials and many more.

1930 年代，古莎公司首创商业化生产以 PMMA 为基质的牙托材料专利技术，以及光固化复合树脂、贵金属烤瓷合金、树脂牙、藻酸盐和硅橡胶印模材料等都在世界上处于领先地位。贺利氏公司在中国拥有 8 个公司，1，500余名员工，年销售额在10亿欧元以上。

Heraeus Kulzer was on the forefront of the development of dental material being amongst the first to introduce commercially manufactured PMMA based denture materials-patented by Kulzer in the 1930', light cured composites, precious ceramics-bonding alloys, acrylic teeth, alginates and silicone impreion materials and many more.

在齿科材料研发进程中，贺利氏古莎始终活跃在前沿阵地。例如：1930 年代，古莎公司首创商业化生产以 PMMA 为基质的牙托材料专利技术，以及光固化复合树脂、贵金属烤瓷合金、树脂牙、藻酸盐和硅橡胶印模材料等都在世界上处于领先地位。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷