粗糙的

In chapter 2, the concept of ""isolated point"" is defined, whose influence on algebraic structure of rough set is demonstrated.

孤点不会位于任何粗糙集的边界上，它对粗糙集的代数结构产生特殊影响。

More asperities tend to interact with each other and affect the central contact zone in elastic-plastic contacts as compared with elastic contacts. The change of spacing and radius of asperities and indentation depth would influence the asperity interaction.

同弹性接触相比，在弹塑性接触过程中有更多的邻近粗糙峰对中心接触区发生作用，改变粗糙峰的间距、曲率半径和压下深度都会对其产生影响。

After analyze some kinds of extensions to the classical rough set theory, a new extension of rough set model based on limited non-symmetric similarity relation is developed.

为此，在分析研究已有的扩充粗糙集理论模型的基础上，进一步提出基于限制非对称相似关系的扩充粗糙集模型。

A model of rough sets under intuitionistic fuzzy equivalant relations is systematically investigated,and the definitions of positive field,dependence degree and nondependence degree are given.

文中描述了直觉模糊等价关系下粗糙集的模型，并在此基础之上定义了正域、依赖度与非依赖度概念，然后详细分析了直觉模糊粗糙集属性约简算法。

A model of rough sets under intuitionistic fuzzy equivalant relations is systematically investigated, and the definitions of pos itive field, dependence degree and nondependence degree are given. An attribute reduction algorithm based on intuitionistic fuzzy rough sets is particul arly analyzed,and the advantages and disadvantages are compared.

文中描述了直觉模糊等价关系下粗糙集的模型，并在此基础之上定义了正域、依赖度与非依赖度概念，然后详细分析了直觉模糊粗糙集属性约简算法。

Jb-2c roughometer, is specially used to evaluate surface roughness of internal and external roll paths of bearings .it can also be used to measure the roughness of parts in forms of plane, sphere and of small size.

仪器用以评定轴承内外圈滚道表面粗糙度。仪器也可测量平面、斜面、球面、外圆柱面、内孔表面、深槽表面，圆弧面及微小零件的粗糙度，所以在机械、模具等行业中广泛使用。

Panicle lanceolate in outline, fairly dense, 7–9 cm, spikelets many; branches scabrid; pedicels 2–6 mm, scabrid.

轮廓披针形的圆锥花序，相当紧密，厘米，小穗很多；分枝粗糙；花梗2-6毫米，粗糙。

Leaf sheaths scabrid; leaf blades flat or involute when dry, 2–13 cm, 1–4 mm wide, scabrid, apex acute; ligule 2–4 mm, lacerate.

叶鞘粗糙；干燥时的叶片平或内卷，2-13厘米，1-4毫米宽，粗糙，先端锐尖；叶舌2-4毫米，伤害。

The FRP tube has a very slippery surface, with roughness rate only 0.009, which is considered as perfect slippery Tube for hydraulic. In daily usage, the wall of the tube of steel, iron or concrete are often corrosive and become rough, while the cross-winding tube can keep a clean and slippery wall surface.

玻璃钢管道内表面相当光滑，一般表面粗糙率可达0.009，几乎可以认为是&水力学光滑管&，在实际运行中，钢管、铸铁管、水泥管等的内表面，经常发生局部腐蚀，变得越来越粗糙，而往复交叉缠绕玻璃钢管道始终保持着新生管表面光滑状态。

The order of surface roughness under no-tillage with different standing crop stubbles is millet forage＞maize forage＞oats＞rape, while the order of the soil wind erosion modules is rape＞oats＞maize forage＞millet forage. The larger the soil wind erosion modules are, the smaller the surface roughness is.

留有不同直立作物残茬免耕土壤地表粗糙度草谷子＞草玉米＞莜麦＞油菜，土壤风蚀侵蚀率呈现相反的趋势，地表粗糙度越大，风蚀侵蚀率越小。

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％。