The knights in the Swordsman's Rivers and Lakes can be described as tricks and tricks. Our daily home life, 岂 can make some kitchen electricity problems trouble! The unsafe factors of kitchen electricity destroy our healthy kitchen environment, like the knights in th
Read moreAerodynamic Acoustic Counter-Research on Rotor Static Interference Luo Jun, Li Xiaodong Beijing University of Aeronautics and Astronautics, 40, Beijing 100083, lined up Euler equation, the sound pressure of finite space is related to the unsteady pressure distribution of stationary blade surface. 1
Read moreAbstract On the afternoon of May 20, Xinda New Materials announced that the company's controlling shareholder, China Pingmei Shenma Energy Chemical Group Co., Ltd., accumulated from the secondary market through the centralized bidding method from May 12 to May 19. Holding 12.55 million sh
Read moreThe cost control, especially the hidden cost, is very difficult for some small and medium-sized ceramic tile companies, so there are many hidden dangers related to the operation of funds, but be careful that some of these potential dangers can be avoided, of course small and medium ceramic
Read moreNow watching TV at home many families have started to use wireless TV set-top boxes, but there are many people do not understand how to use the set-top box ? How to install the installation, the following small series of simple introduction to how to use the set-top box and how to install the wire
Read moreThe Bremen DFKI Robotics Research Center in Germany has developed a semi-automatic car. It can be rotated in place, reduced in size, and even moved horizontally like a crab, making parking a lot easier. Currently, the two-seater can be advanced in a traditional way, either di
Read moreThe new type of building energy-saving materials refers to a type of construction material that uses new process technologies in the manufacturing process, has the characteristics of energy saving, soil conservation, waste disposal, and environmental protection, and can improve building functions.
Read moreThis technology is a type of cold forming, which is a processing method of punching, bending, stretching, etc. without heating. The cold forming process includes cold heading, cold rolling, die forging, and the like. The multi-station bolt cold heading machine introduces a forging method for formi
Read moreGas relays are available in different types such as float type, baffle type, and open cup type. At present, most of the QJ-80 relays are used, the signal circuit is connected to the open cup, and the trip circuit is connected to the lower baffle. The so-called gas protection signal action means th
Read moreAbstract At present, wear-resistant castings have been widely used in mining, cement, electric power, road construction machinery and refractory materials. Abrasion-resistant castings are difficult to process due to irregularities in surface, uneven hardness, and a large amount of hard spots
Read moreFig. A) Schematic representation of the synthesis of a two-dimensional gold single crystal using chloroauric acid and amyloid nanofibril; B) An optical micrograph of a two-dimensional gold single crystal; C) The front of a two-dimensional gold single crystal/polyurethane composi
Read moreSince the value of the temperature and humidity chamber is generally high, we recommend that it be placed in a relatively benign temperature environment. Our empirical temperature value is 8 ° C ~ 23 ° C. For laboratories not equipped with this condition, appropriate air conditioners ( Air c
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