查询词典 bit

At driving bit mounted on the steering wheel airbag middle position, co-pilot-bit airbag installed in front of the platform itself, the accident happened at the moment can effectively protect the driver and co-occupant spaces of the head and chest, because facing fierce collision will happen cause the vehicle in front of large deformation, and the vehicle occupant as the inertia of this heavy dive forward, causing the car with each other percussive elements, while driving the location of the car airbag can effectively to prevent the steering wheel when the collision happened at the top of the chest to the motorists to avoid the fatal injuries.

在正驾驶位的气囊装在方向盘的中间位置，副驾驶位的安全气囊安装在正前方的平台内部，在意外发生的瞬间可以有效的保护驾驶员和副驾驶位乘员的头部和胸部，因为正面发生的猛烈碰撞会导致车辆前方大幅度的变形，而车内乘员会随着这股猛烈的惯性向前俯冲，造成跟车内构件的相互撞击，另外车内正驾驶位置的安全气囊可以有效的防止在发生碰撞时方向盘顶到驾驶者的胸部，避免致命的伤害。

A bit a bit of euphoria, that slight cold-sweat your body makes to warm you that something is happening.

阿位有点兴奋，这稍微冷汗水使自己的身体温暖你的东西正在发生。

Based on controllability of lαβ domain to color and embedding strategy of image bit plane,l,α,β component images are changed according to proposed Combination Bit Plane rule.

利用lαβ域对颜色的控制力和图像位平面的嵌入策略特点，按照提出的组合位平面规则l、α、β分量图进行改变。

Cone bit ; bit bearing ; stress analysis ; finite element analysis

牙轮钻头；钻头轴承；应力分析；有限元法

The bit has a cone rotatably mounted to a bearing pin of the bit body.

钻头具有可旋转地安装至钻头体牙轮轴(19)的锥体(29)。

To enhance the reliability of bearing seal of cone bit, this paper plans to adopt face-radial combination sealing structures; that is to say, end-face and radial seal are arranged in one bit simultaneously. The nonlinear finite element method is applied to analyze and optimize the design of sealing structures.

为了提高牙轮钻头轴承密封的可靠性，本文设计采用端面-径向组合密封结构，即在一只钻头中同时布置端面和径向密封，采用非线性有限元方法对密封结构进行分析和优化。

Making the full use of the theoretical knowledge of FEA,contact mechanics and friction wear,and integrating with the research of other domestic and international scholar. Starting with analyzing working characteristics of journal bearing of roller cone bit, we finished the contact FEA of the journal bearing and the thrust bearing, using ANSYS software. The tolerance ranges of journal bearing of a roller cone bit are specially studied.

本文利用有限元、接触力学和摩擦学理论知识，同时结合国内外其它学者的研究，从分析牙轮钻头滑动轴承的工作特性入手，利用软件ANSYS完成了牙轮钻头中大、小轴承及止推轴承的接触有限元分析工作，对牙轮钻头滑动轴承的尺寸公差的取值，进行了专门的研究和探讨。

In this paper,the situation and data in the test on testing table are presented,which are compared with those of three cone bit,obtaining an important result in applying this kind of bit.

文中介绍了在试验台上的试验情况和数据，并与三牙轮钻头进行了比较，得出了应用该钻头的重要结论。

In this paper, the vibration characters of the Roller Cone Rock Bit which are caused by interaction bit/formation and elastic deformation are analyzed and studied deeply and in detail.

本文对在钻井过程中由于牙轮钻头与岩石互作用及钻柱的弹性变形导致牙轮钻头和钻柱在钻井过程的振动问题进行了深入地分析研究。

In this paper, using the method of computer simulation, on the basis of the cone bit geometry and inematics models and the interaction model of bit and rock, the established models are solved through the MATALB programming.

利用计算机仿真方法，在已建立的牙轮钻头几何学、运动学模型和钻头与岩石互作用模型的基础上，通过MATLAB 编程，求解所建立的各模型。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷