Six trends of fertilizer development in the future

Towards efficient development

High concentration is not equal to high efficiency, improving the utilization rate of fertilizer is the basis of high efficiency, reducing the impact of fertilizer loss on the ecological environment, increasing the output of crops while improving the q.......

Auto parts or into China-US trade "minefield"

In the past few days, the U.S. trade friction with China has fluctuated. Relevant lawsuits concerning Europe and the United States accusing China of restricting the export of certain raw materials have not come to an end. On February 1, 2012, the United States decided to retroactiv.......

Battery internal resistance and measurement method

Different types of batteries have different internal resistances. The same type of battery has different internal resistance due to inconsistent internal chemical characteristics. The internal resistance of the battery is very small, we usually define it in milliohm units. Internal resistan.......

Preparation of graphene highlights practical features

A few days ago, the High Technology Research and Development Bureau of the Chinese Academy of Sciences organized an acceptance meeting for the controllable preparation, properties, and application of graphene, an important direction project of the Knowledge Innovation Project of the Chines.......

Design points of rear fog lamps for cars



The fog lamp is mounted on the front of the car at a slightly lower position than the headlights. It is used to illuminate roads in rain and fog. Because fog visibility is low, the driver's line of sight is limited. The light can increase the operating distance, especially the lig.......