Blockchain unlocks food traceability new pose

“Only companies with self-iteration, self-innovation and self-reflection can become truly great companies” This is a sentence that Liu Qiangdong said in an internal letter to all Jingdong employees on March 30. Recently, Jingdong has repeatedly been complained by consumers on pro

Selection and use of agricultural motors

In agricultural production, various production machines are widely used to drive the motor. Correct selection of the motor matched with the mechanical load can make the motor run in the most economical and reasonable way, thus achieving the purpose of reducing energ

Analyze the principle of a common mixer

A mixing machine is a machine that uniformly mixes two or more materials by mechanical force, gravity, or the like. Hybrid machines are widely used in various industries and daily life. The mixing machine can mix a variety of materials into a homogeneous mixture, s