on the bit

The design and manufacture technique of drill bits with impregnated diamond and tungsten carbide bar are presented in this paper. The technique on the bit of impregnated and tungsten carbide bar with diamond composite is proposed.

介绍了针状硬质合金-金刚石复合型钻头的设计与制造工艺以及在孕镶针状硬质合金钻头基础上复合金刚石的研究方法。

The centering clamp solves the fixing and centering of the high-pressure alloy pipe on the bit, and ensures the drilling fluid flowing to the bit swimmingly.

定心夹具解决了高压合金管上部与增压器高压合金管的同心扶正和高压合金管在钻头中的固定问题，同时钻井液也能顺利下行到钻头。

Research on the Bit Structure and Construction Technology of Rotary Drilling in Hard Rock and Gravel

旋挖钻进中硬岩及卵砾层钻头结构及施工工艺研究

This would ensure that each partner concentrated on the bit of the business in which it really excels.

这将保证各个合伙人在各自的领域处于领先地位。

They say that they have done horribly badly, because they focus on the bit they got wrong rather than the bit they got right. Boys come swaggering out of exams declaring it to have been a piece of piss.

她们说她们考得糟糕透顶，是因为她们只盯着自己做错的那一点地方，而不是做对的地方。男孩子们会大摇大摆地走出考场，说这不过是小菜一碟。

In this paper the concept of Built in Test ( BIT) is introduced, a method for the testability design of avionic integrated equipment is proposed with emphasis on the BIT design of major parts.

本文介绍了机内自动测试（BIT）的基本概念，提出了一种解决航空电子综合化设备测试性设计的方法，并对设备中主要部分的BIT设计作了详细的阐述。

The effects of weak optical feedback ( WOF) on the bit error rate ( BER) of coherent optical differential phase shift key-controll ( DPSK) systems are presented.

本文讨论了弱光反馈对相干光差分相移键控系统误码率的影响。

The number of slots per frame depends on the bit rate.

每帧的隙数依赖于位速率.