cutting bit

The Analytical method and analysis software built are not merely suitable for routine cutting structure of PDC bit but also suitable for the typical auxiliary cutting structure, such as repeating cutter ( namely with rail cutter) and reserve cutter, etc, too.

本文建立的分析方法和编制的分析软件不仅适用于PDC钻头的常规切削结构，同样适用于重复齿（即同轨齿）、后备齿等典型的辅助切削结构。

Reducing rates a bit at a time, it keeps cutting until the economy turns around.

一次降一点, 一直降到经济反转为止.

This cutter arbor is suitable for cutting tool in machine work and mainly used to fix bit tool or blade on it.

刀杆是机械加工中切削刀具的刀杆，主要是固定特殊材料刀头或刀片的车刀刀杆。

In drilling an oil well, mud is used to lubricate the cutting bit.

钻油井时, 泥浆被用来润滑钻头.