The negative pole refers to the lower end of the potential (potential) in the power supply. In the galvanic cell, it refers to the electrode that acts as an oxidation, and the battery reaction is written on the left side. From a physical point of view, it is a pole of electrons flowing out of the -----
At the power construction site, the hard hats worn by the workers are mainly to protect the head from harm. It can protect people's head from injury or reduce the degree of head injury in the following situations. (1) When a flying or falling object hits the head; (2) When the operator falls -----
The impact of hardware on the economic performance of doors and windows There is also fierce market competition in the building door and window industry. One of the important ways to get rid of a single price competition to create a benign market environment is to continuously enrich product f-----
Workers will inevitably come into contact with dust, harmful gases, noise and other occupational hazards in the production process, threatening the physical and mental health of workers. At the same time, it can also be found from the safety production accidents that occurred that many of the accid-----
Scientific and technological developments now smart home industry into the commercial promotion stage, the domestic smart home products and technologies can be described as flourishing, the industry entered a rapid growth. Faced with China's huge demand market, the smart lighting industry -----
Home>Bearing knowledge>How to avoid stable noise /*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; How to avoid stable noise Source: China Bearing Network Time: 2014-01-13 /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089'; 1. In order to make the -----
Any accident has its contingency and inevitability. The convenience of co-existence and arbitrariness are all triggers of accidents. At the time when the year was closed, the construction site was changed from the busy past, and the deserted board room was lined with worn-out safety shoes. This pai-----