麻花钻头

The twist drill is the most common type of metal working drill .

麻花钻是最普通的金属加工钻头。（不译最普通类型的金属加工钻

The geometry in the web of a twist drill is the key factor determining the cutting performances of the drill.

麻花钻钻心部分的几何参数，是决定钻头切削性能的关健因素。

In order to improve drilling efficiency, scientific researchers in the world make much study on the structure parameters and geometry shape of drill point.

钻头是孔加工的主要刀具，在机械制造业中占重要地位，传统的麻花钻在生产上被广泛使用。

As a base of post processing, the grinding of Taper Shank Twist Drill effects the qualified rate of drill.

磨锥柄麻花钻工艺圆尖作为以后各道工序的基准，其磨尖质量好坏将直接影响到钻头的质量和合格率。

All kinds of drill bits and cutting tools, including HSS twist drill bit, masonry drill bit, SDS hammer drill bit, wood drill bit, diamond saw blade, TCT saw blade, fitting of power tools.

3A10 各种钻头和切削工具，包括麻花钻，水泥钻，电锤钻，木工钻，锯片，电动工具配件。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。