磨擦系数

Jolly Balance measurement spring stiffness coefficient of friction of the air track of the number of level measurement.

摘要通过焦利氏秤测量弹簧的劲度系数、对气垫导轨的磨擦力数量级进行测量。

Talc has a platy structure with hydrophobic surfaces. There is weak cohesion between the crystal lattices within talc particles; hence it possesses the advantages of a very low frictional coefficient, softness, and low abrasiveness.

滑石粉为片状结构，具有表面疏水性、在滑石粉颗粒中，晶格层间的内聚力较低、具非常低的摩擦系数、柔软性、低磨擦性等优点。

All cause "DRILLS" UV board to step into the world stage.."DRILLS" UV board's materials are imported shaving board, which environmental protection coefficient achieves the E1 level standard. It is moisture-proof, not distorted;"DRILLS" UV board primer to select the Shanghai name brand PU paint. The color is bright, full, the environmental protection coefficient is high. It is high packing, high coherence, high smoothness. It achieves non-fading truly, and have no cedrat;"DRILLS" UV board select imported high luminance, high clear UV finish-coat. The pan gloss is sharp, feel lubrication, bears the friction, anti-corros

钻牌UV板选用高品质基材，环保系数达到E1级标准，防潮、不变形；钻牌UV板底漆选用上海名牌PU漆，色彩鲜艳，饱满，环保系数高，底漆高填充、高附着、高平整度，真正做到不褪色、无橘皮；钻牌UV板选用进口高亮度、高清晰UV面漆，板面光泽亮丽、手感滑润、耐磨擦、耐腐蚀且抗菌。

Recent advances in pelleting include "high-temperature, short-time" and "expansion" conditioning. The pressure and heat from the steam and friction in the expander increases starch gelatinization, denatures proteins, deactivates some antinutritional factors and destroys pathogenic and spoilage microorganisms. These advances have improved pellet production efficiency and pellet quality, which is usually measured by the pellet durability index.

制粒上新近的进步包括调质上的&高温－短时&、&膨化&，来自蒸汽的压力和热量以及膨化机的磨擦能增加淀粉糊化使蛋白质变性、使一些抗营养因子失活、杀死病原菌及微生物，这些进展已经改进了颗粒饲料生产率和颗粒质量，颗粒质量是以颗粒的耐久性系数来衡量的。

Ltd has signed the long-term cooperative agreement with countries such as Italy, South Korea, Russia, Mongolia and so on. All cause "DRILLS" UV board to step into the world stage.."DRILLS" UV board's materials are imported shaving board, which environmental protection coefficient achieves the E1 level standard. It is moisture-proof, not distorted;"DRILLS" UV board primer to select the Shanghai name brand PU paint. The color is bright, full, the environmental protection coefficient is high. It is high packing, high coherence, high smoothness.

钻牌UV板选用高品质基材，环保系数达到E1级标准，防潮、不变形；钻牌UV板底漆选用上海名牌PU漆，色彩鲜艳，饱满，环保系数高，底漆高填充、高附着、高平整度，真正做到不褪色、无橘皮；钻牌UV板选用进口高亮度、高清晰UV面漆，板面光泽亮丽、手感滑润、耐磨擦、耐腐蚀且抗菌。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。