头屑

The origin of the No. 7 nugget found in south suburbs of Yiyang city of Hunan mainly comes from plaeovolcanic rock and the gold veins and the basic volcanic clastic rock in Nenjiaxi Group slate around the plaeovolcanic rock. Its origin belongs to near source or autochthon sedimentary regeneration.

湖南益阳南郊 7号"狗头金"的金源主要来自古火山岩及其边部冷家溪群板岩中的含金矿脉与基性火山碎屑岩系，属近源甚至近于就地的沉积再生成因。

A scaly scurf formed on and shed from the scalp, sometimes caused by ''.

头皮屑形成并脱落于头皮的鳞片般的头垢，有时由皮脂溢出引起

Dandruff : a scaly scurf formed on and shed from the scalp, sometimes caused by seborrhea.

头皮屑形成并脱落于头皮的鳞片般的头垢，有时由皮脂溢出引起

The two volcanic materials are similar but are also different ①the partition mode of rare-earth element is similar to that of the basalt.②the increase content of the rare-earth element content in transitional layer shows that it enrichs in this segment due to the volcano events. Moreover, the comparability of the partition mode shows that the volcano-genic materials and the basalt are of the same source.③low Eu anomaly different from the high Eu anomaly of medium-acidic tuff in Meishan section, that show that their formation is different④there are plentiful basalt detritus.⑤there are enrichment of the Ti element.⑥the lower content of siderophile element of Ni and Co, especially in the transitional layer, show that there were not extraterrestrial events and big scale basic or ultrabasic volcano eruption events in this area. These characteristics show that the sedimentary source of Xuanwei Formation and Kayitou Formation is basalt.

1稀土元素配分模式与玄武岩类似；(2)稀土元素含量在异常层的增加反映了火山事件导致了它在该段地层中的富集，而配分模式的相似性反映了火山物质来源与玄武岩具有同源性；(3)低"Eu"异常区别于煤山剖面的中酸性凝灰岩高"Eu"异常模式，说明界线粘土岩成因也不同于煤山剖面的界线粘土；(4)大量的玄武岩岩屑；(5)Ti元素的富集；(6)亲铁元素Ni和Co含量较低，特别是在界线异常层含量降低，表明本区在界线处可能并不存在地外事件和大规模基性、超基性火山喷发事件，这些特征反映本区宣威组和卡以头组物质来源主要为玄武岩。

On the basis of the empirical relationship between cutting forces and undeformed chip geometry, a three component f...

基于切削力与切屑几何之间的经验关系，用数值积分方法建立了球头铣刀三分量铣削力模型。

In east adjacent regions Toudaogou of Hami, Zhou Ji yuan found brachiopoda fossil of Early Ordovician in the same stratum of pyroclastic rock with intemediate-basic volcanics: Orthambonites sp., O.

东邻区哈密头道沟，周济元等在相当于火山岩建造的上部层位的火山碎屑岩夹中基性火山岩中发现早奥陶世腕足化石：Orthambonites sp。， O。

Instead of dandruff, you've got ice cream sprinkles!

那样你的头上就没有头皮屑了，而是有冰淇淋沫。

Between the two can also be used shampoo corn or wheat bran powder揉擦hair and then washed antidandruff can scalp on the problem can be satisfactorily resolved.

在两次洗发之间还可用玉米粉或麦麸揉擦头发再洗净，可使头皮上的头屑问题得以满意解决。

The rake face normal curvatures of a ball nose end mill in normal direction and chip flow direction are analyzed and calculated in detail in this paper.

采用微分几何中的曲率分析方法对球头立铣刀前刀面上端刃法线方向和切屑流出方向的法曲率进行了详细的分析计算，并给出了切屑流经前刀面时卷曲半径的计算方法。

The cutting pattern and load curves of cutting process of the two cutting heads were given by computer simulation, which showed that the cutting performance of the cutting head with pick arrangement based on equal-rise-angle spiral line was good because of its reasonable pick cut, its uniform cutting pattern and the small value and the fluctuation of its load.

为了评价利用等螺旋升角进行截齿排列设计的截割头的截割性能，选用了一个实际的截割头进行比较，通过计算机仿真获得两个截割头截割过程的切屑图和载荷曲线，经比较分析表明，用等螺旋升角排列截齿的截割头截槽合理，各段切屑图均匀，载荷大小及其波动较小，截割性能良好，所以用等螺旋升角排列截齿是一种高效、实用的截齿排列方法。

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。