圆

The mathematical model of ruled helicoids on torus is constructed and two expression methods of ruled helicoids are discussed.

基于圆柱螺旋面和圆环螺旋线的形成原理，构建了圆环直纹螺旋面的数学模型，讨论了圆环直纹螺旋面的两种表示方法。

Of, relating to, or shaped like a torus or part of a torus.

环形圆纹曲面环形圆纹曲面的或其某一部分的；形状象环形圆纹曲面的或其某一部分的；与之有关的

An analysis revealed very significant positive correlation between trophozoite area and nucleus area (r=0.54, P .01), trophozoite volume and nucleus volume(r=0.47, P .01), and negative correlation between trophozoite area and trophozoite roundness (r=-0.29, P .01), no significant correlation between nucleus roundness and trophozoite roundness.

相关分析显示滋养体与核的面积(r=0 。5 4 ，P 。0 1)、滋养体与核体积(r=0 。4 7，P 。0 1)相关性有显著性意义，滋养体面积和核圆度呈负相关(r=- 0 。2 9，P 。0 1)，滋养体圆度和核圆度之间无相关性。

The results show that the squeeze viscous force decreases with the slip parameter increases, rigid region of the fluid increases with the slip parameter increases.

结果表明，圆盘上的挤压力随着滑移参数的增加而减小，当流体全部处于流动状态时，即为圆盘挤压牛顿流体时的情况；当流体全部处于刚性状态时，即为圆盘挤压理想刚塑性介质时的情况。

Base on content of chlorophyll a and feeding type of fish and shellfish a food web methods was designed to control eutrophilication. The native freshwater bivalve,Anodonta woodiana, was selected as a filter to remove the algae in the water. The result is quite satisfied and promising.

本研究以水中叶绿素a浓度为基础，鱼类食性为辅，发现使用本土种且具有经济价值之淡水圆蚌，来作为滤除水中藻类的生态方法颇具可行性，利用藻类吸收营养盐、圆蚌食用藻类、再将圆蚌移除之方式而达到降低水库营养盐能量的目的。

In General, rotary printing temperature in Celsius 220 190 ° c in a circle of about 130 applanation 700℃~ 150 ° c, applanation in about 100 to 120 ° c Celsius.

一般情况下，圆压圆烫印温度在190℃～220℃，圆压平约在130℃～150℃，平压平约在100℃～120℃。

In General, rotary printing temperature about $ 19 Celsius 220 ° c in a circle applanation about 130 ° c-38, cross-reference, about 100 of pingsheng applanation 700℃~ 120 ° c.

一般情况下，圆压圆烫印温度约190℃～220℃，圆压平约130℃～150℃，平压平约100℃：～120℃。

Line Rotary die-cutting on cigarette packs such high-end application has taken shape in rrepublic, a circle applanation process with very little rrepublic is mainly used for large scale of products.

连线圆压圆模切在烟包等高端领域的应用已经初具规模。而圆压平工艺用得很少。主要用于大尺寸产品的模切。

For example, high-speed rotary machine speed fast, hot stamping and embossing line contact, higher than the temperature will round applanation or pingya.

例如，高速圆压圆机速快，压印线接触，烫印温度就要高于圆压平或平压平。

Ecological environment factors affecting its growth and development and the spatial distribution characteristics of plant autoeciousness of Hemiberlesia pitysophila were comprehensively analyzed by combining Maxent ecological niche models with geographical information system technique in this paper.The relatively exactly potential distribution region of Hemiberlesia pitysophila in whole Chi...

本文选用Maxent生态位模型与地理信息系统相结合，综合分析影响松突圆蚧生长发育的环境因素，结合寄主分布特征，非常直观定量地获得了松突圆蚧在我国的潜在发生区，计算结果经ROC曲线分析法验证，Maxent生态位模型的AUC值为0.991(非常接近于1)，表明预测获得了较好的效果，研究可为松突圆蚧的检疫及防治决策的制定提供科学依据。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。