High-voltage pulse and the lights flashing may result in Mars, and cause a fire. The direct irradiation of the laser in the laser process, as well as[......]
Photonics, electronics, mechanical and electrical, mechanical, electronic, chemical and chemical related professional undergraduate and graduate stude[......]
The basic requirements: undergraduate graduation, more than two years work experience; hard work and positive attitude, humble and sincere happy to co[......]
This stage should have a maximum rate of polishing the rough polishing, the formation of deformation layer is a secondary consideration, but should al[......]
Steel materials are the most commonly used etchant for 3 to 4% nitric acid alcohol solution or 4% picric acid alcohol solution. 16 test results and te[......]
Chapter 2: The purpose of the research purpose of our study is for operators and investors to provide basis for decision making, which is related comp[......]
Batch sales of green laser pointer are popular. Note: Be prepared to clean the guide – dry cotton cloth, lubricating oil. Engraving machine i[......]
The incoming test of green laser pointer has to be done. Laser cutting laser cutting technology is widely used in metal and non-metallic mater[......]
Strategic laser weapons strategic laser weapons to attack thousands of miles away ICBMs; to attack satellites in space and communications satellites.[......]
The laser is capable of firing laser devices. In 1954 made the first microwave quantum amplifier, a highly coherent microwave beam .1958 years AL Xiao[......]