对削

By turning slender shaft with the tool easy to have a "bamboo-shaped", mainly due to claw card with the tool carrier on the work pressure.

用跟刀架车削细长轴容易产生&竹节形&，主要原因是跟刀架卡爪对工件压力过大造成的。

On the basis of above studies, the work is aimed at examining the main factors which affect the high-speed milling and the optimize calculations of them. It especially carries out the analysis for the affect of the feed speed、tool angle and shape of tooth. Lastly, in this paper all above with theories and tests results have been explained.

在上述分析研究的基础上，本文讨论了超高速切削条件下影响超高速铣削加工的主要因素，重点分析了进给速度、刀具角度和刀具形状的影响，对各影响因素进行了优化计算，并结合试验进行了分析说明。

According to process discipline,the two mainshaft tail-wagging by electromotor.At the same time,two gun-barrel are ream processed by the reamer of the principal axes overlapping.

根据加工要求，由电动机带动两根主轴高速旋转，同时，连接在主轴上的铰刀对两根枪管同时进行铰削加工。

A Talysurf was used to measure the surface roughness of the ground surface.

采用热电偶和三向测力仪分别测量了不同磨削条件下接触区的温度和力，并使用电子扫描显微镜和表面轮廓仪对已磨表面形貌和粗糙度进行了观测。

The structure of the affected surface layer caused by grinding and the hardness change are analysed.

对磨削造成的表面变质层的组织形态及硬度变化等进行了分析研究。

EDAX and talysurf. There were four wear regimes for KRF/GCI, during the starting friction period abrasion was dominant, when the process of the formation and break of transfer layers was balanced the main wear mechanisms were adhesion and fatigue, mild melt wear was found at higher temperature. For KRF/MMC, the dominant wear mechanisms were ploughing and microcuting during the running-in, when transfer layer formed, the film-film adhesion at the interface became dominant and mild melt wear occurred also at high temperature.

对于KRF/GCI，在摩擦的起始阶段主要是二体磨粒磨损，当表面转移膜的形成与破坏形成动态平衡时，粘着磨损和疲劳磨损是主要磨损机理，摩擦表面温度较高时，产生严重的粘着磨损和轻微的熔融磨损；而KRF/MMC在跑合过程中，SiCp对较软材料的犁削、微切削是主要摩擦磨损机理，转移膜形成后，表面的膜—膜粘着则为主要摩擦磨损机理，高温下也会发生轻微的熔融。

Dead branches or knots in different sizes of tree was studied and different branch development phases of growth,suppression,death and self-pruning was analyzed to evaluate the effect that knot size and distribution impact on timber quality.Branch and knot dynamic models were developed using stand and tree variables.Based on multipleunit stepwise regression method, the individual tree growth model was established using forest and crown factors as the variable. The best taper equation model of Larix olgensis was bucking data of 130 sample trees selected in the studied area.

本研究以不同年龄、不同密度及不同立地条件的落叶松人工林作为研究对象，基于19块标准地中95株标准木的树干解析、枝解析及节子剖析数据，揭示了不同林分条件下林木的枝条数量及在树冠内的空间分布格局、生长发育规律；研究了不同大小树木的死枝和节子大小及其变化规律，分析了枝条的生长、被压、寿命和自然整枝过程，评价了节子大小和分布对木材质量的影响；以林分变量、林木变量和着枝深度等为自变量建立枝条生长和节子大小的动态预测模型；选择林分因子和林木的树冠因子作为竞争因子，用多元逐步回归的方法建立落叶松人工林与距离无关的单木生长模型，并根据研究地区选取的130株造材样木数据，建立了落叶松人工林最佳削度方程。

After centreless grinding machine parts were achieved, grinding wheel dresser, rings pallet and screw guide wheel all accord with the need of grinding tapered roller convexity.

对无心磨床的附件进行必要的改进，使其砂轮修整器、工件托板和螺旋导轮均符合磨削圆锥滚子素线凸度的需要。

During this procedure, Ss can review the old words scissors, sharpener and learn something about how to ask the price.

通过听力练习，学生可以复习剪刀和削笔刀两个已经学过的单词，并对询问价格有初步的了解。

Laser resurfacing can be performed on individuals of any age; however it is most successful on individuals with healthy skin and fair complexions.

激光皮肤磨削术可以在任何年龄进行，但它对拥有健康皮肤和不错肤色的个人是最成功的。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。