The high-frequency vibrating screen is mainly used for pre-grading and inspection grading of the second-stage grinding products of the second-stage grinding of magnetite mines. It can also be used as a closed circuit with the second-stage grinding operation. It is also widely used in coal mines.......

Any pump to be repaired, a repaired pump or a new pump shall be tested and tested to see if there is any fault, the form and location of the fault, the ultimate vacuum that can be achieved, and the time elapsed. Identification of pumping rate.

The specific methods and steps of the test.......

Since the birth of laser, laser technology has become an effective means of clinical treatment, and has gradually developed into a key technology for medical diagnosis, and has solved many problems in medicine and contributed to the development of medicine. At present, laser .......

Shanghai Island Korea Biochemical Incubator is a constant temperature culture device for the cultivation and breeding experiments of bacteria, molds and microorganisms. It is an ideal equipment for scientific research and production in the fields of biological gene.......

Ginger has different requirements for watering in different growing seasons. The bottom water must be poured when sowing, and usually the first water is not poured until about 70% emergence. After pouring this water, it is necessary to keep the soil moist, so as to prevent the surface of t.......

1 Ventilation and ventilation are economical and effective measures for dehumidification, especially when the outdoor humidity is low. Ventilation and ventilation can effectively eliminate water vapor in the room and reduce indoor air humidity significantly.

2 The film covering the.......

The site of tomato bud blight is generally near the place where the second and third spikelets of the plant are located. Longitudinal sutures appear at the axillary buds of the diseased plants and form cracks. They are vertical or "Y"-shaped. The edges of the fissures are sometim.......

1 Working principle The working principle of the micro-powder dryer is basically the same as that of the rotary flash dryer. Both of them use the principle that the rotating airflow and the material particles generate a large relative motion, thereby enhancing the heat and mass transfer to comp.......

The storage environment of corn seeds directly affects the vitality of the seeds. To ensure its safe storage, scientific management methods must be adopted.

Clean up and disinfect the seed warehouse. Before the seeds are put into storage, the warehouses and the warehouses must be c.......

FAN Ping, director of the Breast General Survey Center of the General Hospital of the Beijing Military Region, found that women with swollen breasts were nervous and worried that they had cancer. Women with no breast pain were blind and optimistic. They did not attach importance to the cen.......