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This twin-shaft washing machine utilizes the centrifugal principle to wash the clothes, and the laundry effect is cleaner than the ordinary drum washing machine. When you use it, when you insert the movable drum with dirty laundry into the interior of the washing machine, the motor starts to drive the shaft. At the same time, depending on the weight of the clothes, the drum can rotate 360 ​​degrees. In addition, this washing machine sprays water onto the drum in a form of high-pressure water mist, which allows the laundry tightly attached to the inner wall of the drum to be fully washed while also reducing the amount of water and electricity used.
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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