Explain the choice of camera lens

[ Huaqiang Security Network News ] Camera lens is the key equipment of infrared camera. Its quality (indicator) directly affects the imaging effect of the system. Therefore, whether the lens selection is appropriate is related to.......

Topping can avoid loofah empty

Topping is an important task in the management of loofah and has a direct relationship with the yield of loofah. Some loofahs are weak, especially in the low temperature season, and often there is a phenomenon that empty trees can't sit on melons. In the management of loofah, t.......

Atmospheric storage of sweet corn

The post-harvest sweet corn is immediately cooled, and the corn container is placed in a plastic account to reduce oxygen to 2% to 5%, or to maintain oxygen at 21%, and carbon dioxide to 15%, and at 1 to Store at 2 ° C, so that it can be stored for about 3 weeks. If the corn is .......

Disadvantages of diatom mud

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