Thermal oil furnace operating procedures: First, the inspection before starting 1, the furnace and its surroundings are clean and free of debris, check the furnace body, burner, controller, fire hole, chimney, etc. is normal; 2. Reverse the process equipment and process, check whether the oil level ......
There are three measures to increase the total rice production. One is to increase the rice planting area, the second is to change the single-season rice to double-crop rice, and the third is to increase rice yield. Raising the yield of rice is the key to raising the total rice production, and it ......
First, raise the temperature of the mushroom bed and create suitable conditions for the long mushroom. Cold in winter, pay attention to insulation. The film on the mushroom bed should be covered during the rest of the time unless it is peeled off. Pleurotus shed should dilute the covering on the s ......
Fur sales are stable In the near term, suede sales are stable. The North American auction is about to start shooting, and the middlemen in Shangcun and Shishi remain in a wait-and-see attitude. The price of Dalian Qichunpi (a raw hide) is about 255~260 yuan, and Shandong Qichunpi (a raw hide) pri ......
Maintenance first volume two 1. Explosive, flammable and volatile materials should not be placed in the dry box to avoid explosion. 2. The average load of the sample shelf should not exceed 15kg. 3. Items cannot be placed on the shelf between the sample chamber and ......
Release date: 2010-01-04 Cancer progression is often thought of as a process in which primary tumors are constantly metastasizing, and a recent study by US scientists found that circulating tumor cells, cancer cells that have spread out of the primary tumor and spread to other parts of the body ......
Release date: 2009-12-23 Japanese researchers reported on the 22nd online edition of the Proceedings of the National Academy of Sciences that they found that varicella-zoster virus infects nerve tissue by attaching to the protrusions on the surface of nerve cells. Varicella-zoster virus can ca ......
The illumination time in autumn is gradually shortened, and the temperature difference between day and night is large. The following points should be noted in the rearing and management of laying hens: 1, artificial fill light. Light directly affects the sexual maturity, ovulation, and laying of ......
III. Basic Techniques for Determining Formulations The currently-applied formula fertilization techniques are divided from the different basis for quantitative fertilization. They can be grouped into the following three types: First Type of Fertility Zoning (Grade) and Methodology (Part 3) Method o ......
Autumn silkworm silkworm is a silkworm farmer that raises more, yields higher, and has better quality silkworms. During the autumn silkworm period, the temperature is high, and the quality of mulberry leaves is poor, and the silkworm is susceptible to disease and pesticide poisoning. In order to e ......