The operation The pre-immune immunization of swine fever is to vaccinate piglets before they are born, so as to overcome the interference of maternal antibodies, improve the immune protection rate of vaccines, and achieve an effective method for effectively controlling swine fever. For the swine fever pi…
1, construction
As a coating for DIY, it must have very good workability. The US market's waterproof coating gives the paint a leveling, thixotropic, and other easy-to-use performance depending on the use of the site and the construction method, enabling non-professionals to pe…
The important problem facing the current mold car is efficiency and quality. Due to the speed of the launch of new models in the market, auto mold companies are not only producing molds, but also the production capacity requirements have be…
Valves are a kind of commonly used hardware products. Valves also have certain technical requirements before assembly and assembly. Otherwise, the assembled valves are not able to reflect their excellent performance. What are the valves in the assembly process? Technic…
How to improve the accuracy of the determination of dissolved oxygen (iodine) in industrial wastewater Xu Yanhong (Biochemical Plant of Harbin Gasification Plant, Harbin 154854, China) Molecular oxygen dissolved in water is called dissolved. oxygen. When the dissolved oxygen in the water …
Sanitary ware is an indispensable part of modern homes. The following 8 professional tips are provided for your reference.
Rocca bathroom Kohler bathroom
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