The following are the August 2005 output data for copper, aluminum, alumina, zinc, lead, magnesium ...
Abstract Abstract: Based on the research of high-speed cutting technology and tool materials, ...
At present, personal e-banking business has expanded from traditional electronic transfer, ATM, POS ...
Version number the first edition of the press [purchase] fire pump, spray pump, sewage pump [purcha ...
(1) Die cavity diameter (ie working diameter) D=D`+δ`D` Where D is the outer diameter of the e ...
Abstract: There are still many difficulties in implementing a CAD system for product models. The dev ...
With the improvement of people’s living standards, various types of dairy products have de ...
1. diamond, diamond-like carbon (DLC) coating <br> <br> new tool is one of a diamond co ...
Abstract: In view of the current situation of energy utilization in our country and the demand of co ...
Stored grain pests refer to the collective names of insects and mites that harm food and proce ...
The fertilization of flowers and trees mostly adopts the method of digging annular grooves or r ...
In the past 10 years, the welding technology of boilers, pressure vessels and pipelines at home and ...