查询词典 W surface

The results show that although the profile w ear of the surface is not beneficial to the lubrication, the asperity wear does. In consideration of coupling wear of profile and asperity, the minimum film thi ckness increases in a certain worn height. Therefore, the wear of asperity is be neficial to lubrication in this region.

分析结果表明：在重载条件下表面轮廓磨损不利于润滑，而表面微突体的磨损则有利于润滑；当同时考虑表面轮廓和粗糙度时，在一定磨损高度内，磨损显著增加润滑膜的最小膜厚，从而有利于润滑。

When on the prowl the cr ow glides smoothly and rapidly through the air, often changing his direction, no w flying close to the surface, anon mounting high, but oftenest keeping nearly on a level with the tree tops.

在觅食的时候，这种乌鸦在空中平稳而迅速地滑翔着，经常会改变方向，一会儿贴近地面，一会儿又飞升得很高，但它一般会保持着大概与树梢平齐的高度。

Deardorff J W Efficient prediction of ground surface temperature and moisture with inclusion of a layer of vegetation 10.1029/JC083iC04p01889 J Geophys Research , 1978,null

苏从先%胡隐樵%张永丰%卫国安河西地区绿洲的小气候特征和"冷岛效应"大气科学， 1987，4

A comparison of photosynthetic rate, transpiration rate, w ater use efficiency, stomatal conductance, intercellular CO 2 concentration and vapor pressure deficit at the leaf surface between Poaceae C 4 plants (Chloris virgata and Setaria viridis) an d Chenopodiaceae C 3 plants (Chenopodium album and Chenopodium glaucum) under the simulated photosynthetic radiation was conducted in this st udy.

利用人工模拟光源研究了两种 C4 光合途径禾本科植物和两种 C3光合途径藜科植物的光合速率、蒸腾速率、水分利用率、气孔导度、胞间 CO2 浓度及叶面饱和蒸气压亏缺随模拟光辐射增强的变化规律及 Gs、Ci、Vpdl对 Tr和 WUE的影响。

Because the tungsten from the phosphotungstic acid could pull out and deposit on the surface of catalyst, and the electronegativity of Mo-O is smaller than that of W-O.

最后，根据杂多酸的结构和相应的物理化学性质，对杂多酸与铂基催化电极电催化氧化甲醇的机理进行了初步探讨。

Pd on W(111) can induce surface transition from planar(111) to faceting{112}, which has been researched a lot in our laboratory.

而钯在钨(111)表面会诱发皱化而露出能量较低的{112}面，这是被研究过并已经可以产生单原子针尖的系统。

The particles of W, Mo, Co were spluttered and deposited on the surface of the steel.

工件表面受轰击作用的过程中温度也得到了提高。

The micro-morphology of the fracture surface appears to be the inter-granular brittle before sodium corrosion for the rotary swaging and polishing W-specimens.

经高温钠腐蚀后，旋锻钨试样的晶粒长大，断裂应力和显微硬度显著降低；高温钠腐蚀对抛光钨试样的断裂应力和显微硬度似乎无明显影响。

In HCl solution,an absorption model is suggested that those inhibitors w ould be adsorbed on metal surface in horizon flat-ended.

在HCl溶液中提出了这些缓蚀剂可能以平卧方式吸附于金属表面的吸附模型。

When the output power of the CO_2 laser machine reaches 100 W on average, the round focusing point can be formed on the surface of glass by the focusing light path.

CO2激光器平均输出功率为100W时，通过聚焦光路在玻璃表面形成圆型的聚焦点。

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％。