查询词典 roughness

Static coefficient of friction Surface roughness Dry friction

静摩擦因数；表面粗糙度；干摩擦

Experiments were performed with this device to measure the static coefficient of friction for three kinds of material(45steel,HT35-61,QT80-2) in the same processing method,the same surface texture,the same load,dry friction and different surface roughness conditions respectively.

分别对材料(45钢、HT35-61、QT80-2)在相同加工方法、相同表面纹理、载荷恒定、干摩擦条件下，改变表面粗糙度时的静摩擦因数进行了测定。

Studying or singing coloratura has a course from the juvenility t o the mature deepen endlessly,and from the roughness to the perfecti on beautify endlessly,which profound with end,which variety extreme ly and unfathomable if we can benefit a little bit from it that would be good.

美声花腔的学习与演唱，在实践中都有一个从稚嫩到成熟到不断深化的过程，也有一个从粗糙到精细到不断美化的过程，其间奥妙无穷，高深莫测，变化万般，点滴受益实属不易。

The roughness of knowledge embodies the granularity of knowledge in algebra view.Two concepts are defined in information view,which are information entropy of knowledge and conditional information entropy of knowledge.

在代数观点中，知识粗糙性体现了知识的粒度；而在信息观中，定义了知识的信息熵和条件信息熵。

studies the result shows the bacterium is right originally the conglutinate ability of surface of artificial and articulatory material not only depend on bacterial itself, also concern with material property and exterior surface roughness.

结论本探究结果表明细菌对人工关节材料表面的粘附能力不但取决于细菌本身，也和材料性质和表面粗糙度有关。

The product contains abundant perilla essence, chamomile essence, gingko essence, aloe essence and other vegetable moisturizing ingredients to quickly complement moisture for shaved skin, soften corneum, resume skin health, prevent shave damage and skin roughness; firm and constringe skin, prevent moisture evaporation, make skin become clear and oil-free. The weak acidic, fragrance-free and pigment-free toner is the same mild to the sensitive skin.

本品内含丰富的紫苏精华、母菊精华、银杏精华以及芦荟精华等植物性保湿成份；为剃须后的肌肤迅速补充水份，软化角质层，恢复肌肤健康状态，预防剃须时的刮伤与肌肤粗糙；紧致收敛肌肤，防止水分蒸发，使肌肤清爽不粘腻，对敏感肌肤也同样温和低刺激的弱酸性化妆水，无香料无色素。

The product contains abundant perilla essence, chamomile essence, gingko essence, aloe essence and other vegetable moisturizing ingredients to quickly complement moisture for shaved skin, soften corneum, resume skin health, prevent shave damage and skin roughness; firm and constringe

功能： 本品内含丰富的紫苏精华、母菊精华、银杏精华以及芦荟精华等植物性保湿成份；为剃须后的肌肤迅速补充水份，软化角质层，恢复肌肤健康状态，预防剃须时的刮伤与肌肤粗糙；紧致收敛肌肤，防止水分蒸发，使肌肤清爽不粘腻，对敏感肌肤也同样温和低刺激的弱酸性化妆水，无香料无色素。

Since continuum hypothesis is still valid for liquid flow in microchannels with hydraulic diameter at about 100 micro-meters, a turbulence convection heat transfer model for single-phase liquid flow in microchannels is established, in which wall surface roughness viscosity is introduced.

分析表明水力直径为100μm左右的微管道内单相液体流动仍满足连续介质假设，引入粗糙度粘性系数，建立了微管道内单相液体湍流对流换热模型，并采用3维有限容积法进行了数值计算，将计算结果与实验结果进行了对比。

The results showed:(1) the propagation coefficient were from 0.8 to 6.8 in different development phase, the highest propagation coefficient appeared in June, July in dormancy stage and September in initial stage of vigorous growth;(2) all of biological characters, such as cormel's fresh weight, size, height, root length, roughness and root quantities, presented 1% significant difference.

结果表明：(1)不同生长发育期无性繁殖系数在0.80~6.80之间浮动，休眠期的6、7月和旺盛生长初期的9月繁殖系数较高；(2)不同生长发育期无性繁殖的子球鲜质量、最大直径、子球高度、根系长度、根基粗度及根系数量等生物学性状均呈现1%水平极显著差异。

The maximal depth model for single-pass milling process, the depth and surface roughness for plane surface are established. The milled profile of a single-pass milling of the jet can be modeled as a cosine curve of the form. Therefore, the maximal depth model for single-pass milling is established which indicates the quantitative relationship between the AWJ single-pass milling depth and the milling parameters.

假设磨料水射流单次铣削时的工件横截面形状为余弦曲线，建立了磨料水射流单次铣削的最大深度模型，分析了水射流压力、磨料流量、靶距、喷嘴横移速度、横向进给量和喷嘴直径及材料性能参数对单次铣削最大深度的影响规律。

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。