Haolong Hardware Market Exhibition Hall begins to enter the household
The reporter learned from the Daowai District Marketing Office that the 110 building of the hardware market of the Xiaolong International Trade Logistics Park, which is the base of Beihuan Mall, has been completed and accepted. In the past two days, 150 businesses have taken the keys. The market plans to start operations next month.
According to the relevant person in charge of the market, the Xiaolong Hardware Market covers an area of ​​400,000 square meters, with parking lots of 3,000 parking spaces and special passages for large vehicles. 1296 shops in the Eastern District, mainly accepting the business of the North Ring Mall, the first batch of 1273 Households in the North North Ring Mall have settled in, and 1,344 shops in the West District have begun to rent out. Yesterday, the reporter saw at the scene that the relocation households of Beihuan Mall lined up in the “Qilong†service hall to collect forms and sign contracts, and the people in the hall were shaking.
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.
According to the relevant person in charge of the market, the Xiaolong Hardware Market covers an area of ​​400,000 square meters, with parking lots of 3,000 parking spaces and special passages for large vehicles. 1296 shops in the Eastern District, mainly accepting the business of the North Ring Mall, the first batch of 1273 Households in the North North Ring Mall have settled in, and 1,344 shops in the West District have begun to rent out. Yesterday, the reporter saw at the scene that the relocation households of Beihuan Mall lined up in the “Qilong†service hall to collect forms and sign contracts, and the people in the hall were shaking.
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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