根部

The rotor dynamical model takes the form of an articulated rotor with flap and lag hinge offset,precone and prelag angle and hinge spring.

分析了直升机旋翼的预锥角、预掠角、桨叶根部的约束刚度和阻尼对直升机操纵性和稳定性的影响。

Yun-strip method, the circle-shaped bath temperature higher than the crescent-shaped article transport transport of temperature, the temperature was higher than the crescent-shaped article transport serrated Article transported bath temperature, in the 12mm flat bottom welded seal, using serrated transport of , and with the magnitude and the swinging groove on both sides of the pause, effective control of the bath temperature, so that pore size of the melt is essentially consistent with the roots do not form a welding groove tumor and decrease the chances of burn-through, no penetration has The improvement of the peace panels of the single-sided welding butt welding flat-sided shape is no longer difficult.

运条方法，圆圈形运条熔池温度高于月牙形运条温度，月牙形运条温度又高于锯齿形运条的熔池温度，在12mm平焊封底层，采用锯齿形运条，并且用摆动的幅度和在坡口两侧的停顿，有效的控制了熔池温度，使熔孔大小基本一致，坡口根部未形成焊瘤和烧穿的机率有所下降，未焊透有所改善，使乎板对接平焊的单面焊接双面成形不再是难点。

Their roots are home to bacteria that put nitrogen, an important plant food, into the soil.

他们的根部是细菌的家，可以把氮，一种重要的食物输入到土地中。

The results also show that integral moment is the main part of the foundation plate moments, the total deformation is like the pot bottom, and there is great moment at the root of frame column connecting with the foundation, which should be paid attention to in design.

分析研究还显示，由于考虑了地基土、基础与上部结构共同作用，在基础筏板的全部弯矩中，整体弯矩占主要部分。整体变形类似锅底状，以底部受拉为主要受力状态，同时与基础相接的框架柱根部有很大的弯矩，设计时要充分注意。

Combined with the macro-morphology appearance analysis and working conditions of failure casing, the paper reached a conclusion that it is due to the impact and friction which come from the drill tools made the fatigue cracks formation on the casing thread root, and eventually leading to casing rupture failure, the material defects in failure casing accelerated crack initiation and growth.

摘 要：某井在钻井作业过程中，发生了上层Φ244.5 mm技术套管断裂失效事故，为了分析事故原因，对失效套管材料的化学成分、金相组织和力学性能进行了检测分析，结合套管失效形貌的宏观分析和套管使用过程中的现场工况分析，得出了套管螺纹发生断裂失效的原因是钻具对套管的撞击、摩擦，使套管螺纹根部产生疲劳裂纹，最终导致套管断裂失效，失效套管的材料缺陷加速了裂纹的萌生和扩展。

Characteristics: According to the principle of forming acnes and furuncles and based upon the latest modern technique of biological gene engineering and the priciple of bacteriology, the product is made of the essence extracted from several dozen natural precious herbs.

产品特性：针对粉刺，青春痘形成原理，采用现代最新生物基因工程技术及细菌学原理，配合几十种名贵草本植物萃取菁华精制而成，能渗透至肌肤深层及毛囊根部，排出代谢垃圾，促进粉刺、青春痘、暗疮等皮肤问题的有效改善，清除痘痘所产生的色素沉着及痘疤，祛痘平疤不留痕，令肌肤平滑嫩白，防止痘痘再生。

We examined whether neurite growth was slowed by tetracaine at small concentrations in chick embryo dorsal root ganglions.

本研究检测了低浓度地卡因对鸡胚胎根部神经突生长是否有减慢减慢作用。

But it should be grinded off before completing the root welding.

但在完成根部焊接以前应彻底磨掉。

Just like you don't see all of a big oak tree above ground, you don't see the root of your penis tucked up inside your pelvis and attached to your pubic bone.

如同你不曾见过一棵大橡树在地面之上所有的部分一样，你肯定没有见过阴茎的根部是如何在骨盆里折起并贴在耻骨联合下方的。

The are very small because the hard soil keeps grass roots from growing deep.

由于坚硬的土地阻碍了草的根部继续向深处长，所以这些禾草都非常小。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。