High speed machining (HSM) generally refers to end milling at reasonable speeds and high surface feed rates. For example, in the special milling of the partial groove of the aluminum aircraft frame, the material removal rate is high, and this processing is high-speed machining. Over the past 60 years, high-speed machining has been applied to a wide range of metal and non-metal workpiece materials, including those requiring parts with a specific surface topology and materials with a hardness of 50 HRC or more. machining.
2. Make the specimen relatively fixed;
3. It is convenient to use the capillary phenomenon to form a gradient when adding various reagents (staining agent, acid, salt solution);
4. Avoid contamination of the specimen.
The cover glass is covered on the material on the glass slide, which can avoid the contact between the liquid and the objective lens, so as not to contaminate the lens, and can make the top of the observed cells in the same plane, that is, the distance from the objective lens is the same, so that the observed Images are clearer.Why do you need a coverslip when using a microscope
1. Make the object to be observed form a thin film, which is easy to transmit light and easy to observe;2. Make the specimen relatively fixed;
3. It is convenient to use the capillary phenomenon to form a gradient when adding various reagents (staining agent, acid, salt solution);
4. Avoid contamination of the specimen.
The purpose of staining the specimen with iodine solution is to make the cells more obvious under the microscope, and it can also kill the cells and prevent the cells from migrating.
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