沟的

On the basis of studying the mechanism of the self-excitation vibration and the helix lobes of the cylinder in the well logging tool during deep-hole boring, th e influence of the length of the guide pads on the torsion deformation and stabi lity of the boring cutter is analyzed.

在论述深孔镗削加工过程中自激振动和螺旋沟产生的机理后，分析了石油测井仪器筒体深孔镗削加工中导向块长度对镗刀扭转变形和稳定度的影响。

This period of the Ming Great Wall, about 363 kilometers east from the Gansu-Qinghai border village at the turn Ledu County aloe flower Wan beginning, through the ditch to the northwest extension of the ice, and mutual aid county Songhua top phase; from the southwest along the reach mutual Sakamoto Mountain Risk, and the western slope of the Great Wall in Datong County phase; across the West through the empress Mountain Chase Insurance and Huangzhong County-phase; Huangzhong County, Linkou from the incense start arc from north to south ridge of mountains extending to pull together constitute the arch of the Xining Defense system.

这段长约363千米的明长城东端从甘青接壤处的乐都县芦花乡转花湾村始，经冰沟向西北延伸，与互助县松花顶相接；从互助向西南沿达坂山山险与大通县西坡长城相接；横贯大通向西通过娘娘山山险与湟中县相接；湟中县从香林口开始，南北向弧形延伸至拉脊山，共同对西宁构成拱形防御体系。

Our company has a great production scale production of high-precision bearings, It mainly produces category 0-deep groove ball bearings, Category 1-aligning ball roller bearings, category 2- cylindrical roller bearings, category 3--aligning roller bearings, category 6- contacts cross roller bearings, category 7- tapered roller bearings, category 8- thrust ball bearings, category 9- thrust roller bearings and spherical bearings, Imperial roller bearings.

我们公司有一个很大的生产规模，生产的高精密轴承，它主要生产类0 -深沟球轴承，第1类调心球滚子轴承，第2类-圆柱滚子轴承，第3类-调心滚子轴承，6类-接触，交叉滚子轴承， 7类-圆锥滚子轴承，8类-推力球轴承，九类-推力滚子轴承和球面轴承，英制滚子轴承。

gap by law easy to use, easy to grasp, apply to the relatively high crown boneless resistance, resistance to a small adjacent teeth, the roots for the integration of the root or the root bifurcation cases, such as low lower the removal of impacted wisdom teeth; split crown law Requirements, flexibility in operation, more suitable for medium and low impacted significantly ditch and development, the root fork or a higher resistance to a larger adjacent teeth, and other cases, the lower-third-molar extraction.

结论增隙法操作方便、易于掌握，比较适用于高位、冠部无骨阻力、邻牙阻力小、根部为融合根或根分叉很低等情况下下颌阻生智齿的拔除；劈冠法要求条件高、操作灵活，比较适用于中、低位阻生且发育沟明显、根分叉较高或邻牙阻力较大等情况下下颌阻生智齿的拔除。

Surface of bore of the cylinder sleeve is processed to superior pit platform textured structure for good wearability.

气缸体缸孔镶干式钢气缸套，缸套内孔表面加工成良好的深沟平台网纹结构，使其有很好的耐磨性。

The ditch digger put his hand on his face and said,"Take your shovel and hit my hand."

这个挖沟人就把手放在自己脸上说：&拿你的铁锨打我的脸。&

The ditch digger put h is hand on h is face and said ," Take your shovel and hit my hand ."

这个挖沟人就把手放在自己脸上说：&拿你的铁锨打我的脸。&

The main products of "big ditch" brand millet, golden color, flavor taste and rich nutrition, since the market over the past few years by the vast number of consumers favor, sales prospects are extremely promising, production increases every year, is now National Certification the "Chinese organic food" certificates.

公司主要产品&大沟&牌小米，色泽金黄，口味香浓，营养丰富，自投入市场几年来，深受广大消费者的青眯，销售前景非常看好，生产量逐年增加，现已取得国家认证机构的&中国有机食品&证书。

The annual total water resources storage in the controlled main drainage canal is about 110 mm, which is about 13% of the annual precipitation.

以大沟控制蓄水进行农田水资源调控这一技术模式，是适合淮北平原区特点的解决水资源短缺和改善农田生态环境、调控区域水资源时空合理分布的有效途径。

In the experi- ment and practice m the zhongwei North Main Canal of the Hetao Irrigation District, a cheap and quick functioned slope protection method of soil and grass mixture for tree planting has been searched for de- sign and construction of irrigation canal and drainage in the desert region.

河套灌区在中卫北干渠进行了试验，在沙漠建渠道，用人工和植物固沙，沙漠区排水沟道的设计则充分考虑水流冲刷，对沟道防坍塌摸索了一条花钱少、见效快的草上植柳护坡办法，并在灌区内植树造林以固沙。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。