使磨损

Subgingival deep diving is possible due to a special single-use nozzle in combination with extra fine-grained Air-Flow powder that does not abrade tooth surface.

特殊的一次性喷头和不会磨损牙表面的精细的Air-Flow粉末使"龈下深潜"成为可能。

Then the MEMS solenoid type electromagnetic actuating and novel, frictionless and wear-free, and simple structure are designed for fiber-deflecting type MEMS VOA: One of the two coupled single mode fibers is completely fastened in one of the three aligned U-shaped grooves while the deflectable fiber is partially fixed in another groove with a long front section suspending over the wider groove as a cantilever beam. The two fibers, any one for input and the other for output, are well aligned initially so that the insertion loss is very low. Beside the deflectable fiber is a solenoid microactuator with a U-shaped permalloy core attracting a permalloy piece glued on side of the fiber cantilever so that the fiber is deflected and the optical power coupled between the fibers decreased continuously. Using MEMS solenoid as a continuous actuator and the novel structure of VOA are not seen in literature.

为光纤偏移型MEMS可变光衰减器设计了MEMS螺线管电磁驱动方式以及新颖的避免了静摩擦、磨损而且简单的整体结构形式：在硅基片的三段V形槽结构中，将两个对接单模光纤之一完全固定在基片上，只将另一根光纤的稍后部位固定于基片上而使其前端的一定长度悬空，形成一个悬臂梁结构；初始对准后两根光纤之间的光传输损耗很小；通过U型铁芯MEMS螺线管吸引固定于光纤悬臂梁上的坡莫合金片，驱动光纤悬臂梁连续偏移以使两根光纤之间功率传输系数连续变化，从而达到光功率连续衰减的目的。

SUGGESTED MODIFICATIONS Among the suggestions put forward by various commanders for modifying the 81-mm so as to make it more useful to the infantry regiment there were the following: Lighten it in "any manner possible" to increase its cross-country mobility. Build it so that it could be broken down from a long barrel to a short barrel, thus making a lighter pack possible while preserving its heavy punch at the short ranges. Sectionalize the base plate so that the load can be distributed. Alter metallurgically or in design the elevating screw, the breaking and rapid wearing of which is now the chief structural weakness in the weapon.

建议采取的改进措施：为改进81mm迫击炮，使其在步兵团中发挥更大的战术校能，多位指挥官提出了如下意见：尽一切办法减轻重量，以增强其越野机动性；改进结构，使长炮管可拆解更换为短炮管，这样就可以在保留强大的近程冲击力的同时减轻负重；分段铸造底盘，使负重均匀分布；改进升降螺丝杆的冶炼或设计，升降螺丝杆的损坏和迅速磨损现在是这种武器主要的结构缺陷。

Moreover, Seed dispersal also relies on animal and waterpower, which make seeds spread far distance, at the same time, the penetration of seed capsule can be improved by the dam age of animal's digestive system, so it can promote the seed germination.

此外，还有动物散布和水力作用的散布，使种子能传播较远的距离，同时种子被采食后，通过消化道的磨损使种皮的通透性提高，促进了种子的萌发。

Alkyl siloxane is good lubrication, water-resistance, anti-fouling, anti-tacking, printable, and strong affinity to organic materials, especially for its low wear-out, low friction coefficient and high susceptibility of additives that used as lubrication. Besides, it has the excellent properties in printing, impression and paint that used as mold-release agent. Therefore, alkyl siloxane is applied widely and researched thoroughly.

长链烷基硅油具有优良的润滑性、憎水性、防污性、防粘性、可涂印性及对有机材料的亲和性，尤其作为润滑油使用时，具有低磨损、低摩擦系数及对添加剂感受性好等优点；作为脱模剂使用时，不仅使用效果优异，而且不妨碍产品表面随后进行的印刷、压印及涂漆，因此得到广泛得开发和应用。

In addition, a printing plate edge marked slopes or plate is too thin, or short-run printing of excessive wear lighter, so that the short-run suites and whitespace differences of high and low is too low and too soft pads, resulting in suites blank areaand, electro-chemical layer of aluminum foil, etc, should be made at the edge version slope near 90-degree right-angle (such as seihan with carving techniques that help you make little gradient edge version), according to the characteristics of the short-run suites, with thickness larger plate seihan, and a blank site, using a corrosion deeper stereoplasm lining for short-run; in addition, you should choose thin aluminized layer of anodized, adjust the appropriate business card printing and membership card making and adjusted pressure volume drum uponsize pressuer letoff drum.

此外，印版边沿存在明显的斜坡度或版材太薄，或印版过量烫印磨损变浅，使烫印版面与空白的高低差异太小，衬垫材料过软，造成版面空白部位与电化铝箔层接触等，应将版边沿坡度制成近90 度的直角(如采用雕刻工艺进行制版，可使版边沿几乎没有坡度)，根据烫印版面的特点，采用厚度大一些的版材制版，并将空白部位腐蚀深一点，采用硬质包衬进行烫印；此外，应选择镀铝层较薄的电化铝，调整合适的制卡和会员卡制作压力，并适当调整压卷滚筒压力和收卷滚筒拉力。

WC particles also can make the abrasive particles obtuse ,consequently reduce the cutting of abrasive particles to the coating.(7) The coating surface with unsmoothed units make the abrasive particles change moving direction . They can change the ploughing to rolling and bring light longitudinal vibration contributing to reducing the shearing force when the surface are worn by abrasive particles.

具有非光滑结构单元的复合层表面使参与复合材料磨损的磨粒改变运动方向，使之由滑动变为滚动，产生有利于减小切向力的法向微振动，减少磨粒和复合材料的接触面积和作用时间，从而大大减轻了磨粒对复合材料表面的损伤。

We have to study continuously, so then can enter with the hour 2 The Italian football team emphasizes team spirit very much, this is the key that they win world cup 3 She doesn't make a sound to run away, making his parents' confused and worried 4 That automobile of the little boy brigade exposition infatuates very much 5 Make Liu feel excited BE, he created in the mulberry of Switzerland 12 second 88 of man the world record of 110 meters column 6 I saw time of right bower the last time, he a person walked on the street 7 Almost each person plead guilty is impossibly exterminated thoroughly 8 If the public lost to the trust of this company, so their sale meeting will descend of very quick 9 The speed that gives my impression is most deep to suspend railroad train is how quick 10 My father would not like to substitute him that to wear away an unbearable old cellular phone with the new hand machine

我们必须不断学习，这样才能与时共进 2 意大利足球队非常强调团队精神，这是他们赢得世界杯的关键 3 她不声不响离家出走，使他的父母心烦意乱 4 小男孩队展览会上的那辆汽车很着迷 5 使刘翔感到兴奋的是，他在瑞士洛桑创造了12秒88的男子110米栏的世界记录 6 我最后一次见到杰克的时候，他一个人在街上走 7 几乎每一个人都承认犯罪不可能被彻底消灭 8 如果公众失去了对这家公司的信任，那么他们的销售会会下降的很快 9 给我的印象最深的是磁悬浮列车的速度是多么快啊 10 我爸爸不愿意用新手机来替换他那只磨损不堪的老手机

The assembly of journal and plain bearing liner space is too little, force of organic still oil pressure is small it is the crucial index that affects lubricant result, make lubricate because of lacking engine oil between crankshaft and plain bearing liner and bite dead invalidation, include to be pulled badly, lack lube, layer of alloy of dry attrition generation is fused, grind sliding surface to did not maintain the oily film of certain ply, and all sorts of local overload exhaustion are destroyed, cavitation erosion and V form are destroyed etc, through technology of him director diesel locomotive old experience reachs the analysis of pair of its breakdown reasons, put forward precautionary measures especially. As a result of,the burns caustic mechanism plain bearing liner to burn caustic mechanism of 1 plain bearing liner is the lube film burst between journal and plain bearing liner, cause plain bearing liner and crankshaft generation clash, below high temperature, high pressure and high rotate speed, the wear-resisting alloy layer of plain bearing liner wears away prematurely or fuse, cause plain bearing liner and crankshaft to stick thereby bite, can make the steel back of plain bearing liner and Kong Zhong produces whirligig, inlet port is jammed, carry on the back by steel again with the friction of aperture causes high temperature to make plain bearing liner burned-out further, can cause bolt to break off, happen swing a malign accident that pounds cylinder body of bad internal-combustion engine.

轴颈和轴瓦的装配间隙太小，还有机油压力低是影响润滑效果的关键指标，使得曲轴和轴瓦之间因缺少机油润滑而咬死失效，包括严重拉伤，缺少润滑油，干摩擦产生合金层熔化，磨滑面没有保持一定厚度的油膜，以及各种局部过载疲惫破坏，气蚀和V形破坏等，通过本人主管内燃机车技术多年经验及对其故障原因的分析，特提出预防办法。1轴瓦的烧损机理轴瓦烧损的机理是由于轴颈和轴瓦之间的润滑油膜破裂，导致轴瓦和曲轴产生摩擦，在高温、高压和高转速下，轴瓦的耐磨合金层过早地磨损或熔化，从而引起轴瓦和曲轴粘咬，会使轴瓦的钢背和座孔中产生旋转运动，进油孔被堵塞，再由钢背和座孔的磨擦进一步引起高温使轴瓦烧坏，并会造成螺栓折断，发生甩出捣坏内燃机缸体的恶性事故。

The results shown that the oil-saving rates of fuel oil and lubricating oil are 5 % and 50% respectively by using GRT energy-saving oil additive, it have reached the level of same kinds of products in 80's from abroad; the cylinder wear of DONGFENG truck and JIEFANG was reduced by 24% and 33% respec-tively; the GRT additive improved obviously the seal property of engine cylinder, not only increasing the cylinder pressure nd the output power of engine to rise the acceleration and cold starting properties, but also improving the combustion situation of the fuel oil to decrease the environmental pollution from the exhaust of truck.

结果表明，应用GRT节能油添加剂可以分别节约燃料油5％以上和机油50％以上，达到了八十年代国外同类产品的先进水平；能使东风牌汽车和解放牌汽车的汽缸磨损分别降低24％和33％以上；使用GRT添加剂可以明显地改善发动机汽缸的密封性，不仅提高了汽缸压力和发动机的输出功率，使其具有良好的加速性和冷起动性，而且改善了燃料油的燃烧状况，从而减少了汽车尾气对环境的污染。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。