The granulation mechanism has fast particle size and good effect. The special filter screen is designed and carefully sieved. The friction filter rod can crush the sieved solid particles and is widely used in the pharmaceutical, chemical and food industries. This ma…
The composition is iron, iron oxide is not magnetic.
Most of the magnetic materials are iron-containing compounds which is correct because the magnets are in most cases a mixture.
The atom…
The function of several plant-derived pesticides :
1. Tobacco. Ink 1 kg of tobacco into 10 kg of hot water, remove it and put it in another 10 kg of water. Combine two mashes, mix with 10 kg of lime water (containing 0.5 kg of lime) and spr…
The straw is processed into nutrient grass powder, and the sheep love to eat and gain weight quickly. Straw processing grass powder, the process is simple, that is, the storage problem of the green feed is solved, and the feed utilization rate is improved. The techn…
In home decoration, the most direct contact with the consumer's personal interests is the project cost. In fact, there are many factors that affect the project cost, such as the difference in the price of materials, the ease of construction process, and the construction area of  
Strong cold air affects the central and eastern regions of China, such as Jiangnan, South China and other places with moderate to heavy rain.
First, important weather
1. Windfall forecast
Affected by strong cold air, it is expected that temperatures will fall …
Due to recent research in the thermal conduction of superlattice structures, thermoelectric devices that generate electricity using temperature differences may be more efficient. The new study found that, surprisingly, thermal energy is transmitted in…
Introduction <br> <br> a certain machine parts manufacturing process using a hard material. These include some high-hardness brittle materials. In this machining field, superhard tools can make a big difference.
In addition to natural diamonds, artificial …