The occurrence of pests and diseases in the production of green fruits is inevitable. In order MORE

(1) The base fertilizer spring corn is mainly based on base fertilizer, supplemented by topdressing MORE

Water enters the filter from the water inlet, first passes through the coarse filter element to filt MORE

More and more people use webcam video chat, and hackers post that they can easily "take over&q MORE

The principle of laser cladding technology is to pre-set a special powder material on the surface of MORE

Tycos (Concord, Ontario) is a mold division of Decoma International, a wholly owned subsidiary of MORE

2. Development of PVD technology abroad PVD technology appeared in the late 1970s. Because its proc MORE

Abstract : The basic principle of vibration stress relief technology is analyzed and discussed. The MORE

Soil-borne diseases are the main technical problems affecting the development of high-efficienc MORE

Pay attention to the time The farmer's fertilizer is slow, it should be applied early, usua MORE

The Shanghai Science and Technology Commission hosted the Shanghai Science and Technology Commiss MORE

Flexible pumps are vacuum suction squeeze discharge of a rotor-type positive displacement pump, and MORE