No chalk, no dust, the blackboard in front of the teacher is a clear touch screen interface; no notebook, no pen, the most popular ipad in the hands of students, interactive learning with teachers ... A few days ago, the first high-end electronic teaching platform-based The high-end class was offi ....

The operation mechanism of Chinese enterprises has not yet fully adapted to the requirements of market economy development. In the process of development, a group of key state-invested enterprises faced the severe situation of aging products and the loss of technical personnel. After restructuring ....

Recommended products: ONLEAD cute furry lazy sofa Material: plush, expanded polystyrene particles Specifications: 330cm-380cm Source: Tmall Mall Reference price: 368 yuan The urban life is fast-paced and stressful. After a day of work, home is the best "safe haven". When you ....

According to the physicist organization network recently, researchers at the Lancaster Environmental Center in the United States found that the organic compound isoprene released by trees as a source of biofuels mixed with other pollutants in the air will increase the air near the plantation The i ....

Human CC Chemokine Receptor 5 ELISA Kit II. Precautions 1. This reagent is an in vitro test reagent and is used within the validity period. The reagent should be regarded as an infectious agent. Reagents with different batch numbers cannot be mixed. The reagents in the box should be taken out befor ....

The constant temperature and humidity test chamber is a test chamber integrating temperature and humidity, and is a very popular test equipment at the moment. The constant temperature and humidity test chamber is a necessary test equipment in the fields of aviation, automobiles, home appliances, sc ....

Acceleration sensor selection Piezoelectric acceleration sensors are widely used because of their wide frequency response, large dynamic range, high reliability, and ease of use. In general general vibration measurement, the technical indicators that users are mainly concerned with are: sensitivi ....