What should you watch out for when measuring crop canopy?

The modern use of crop canopy analyzers can quickly obtain measured data, providing a lot of convenience for the conduct of various agricultural research experiments, which is not to be deeply understood by researchers and experts, and with the availability of crop canopy analyzers. The

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What is the mystery of the QR code access control system?

Two-dimensional code access control is the most popular way to open the door for mobile phone access. It has unique visitor access function and high safety factor. It is widely used in office buildings, living quarters, joint office, gymnasium, etc. However, there are still many laymen. People que

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Explosion-proof power supply box correct operation method

1. According to the actual lighting needs of the work site, determine the installation position and mode of the lamp, and then prepare the three-core cable of the corresponding length according to the distance from the lamp to the 220V power contact; 2. First remove the fixing screws on the wirin

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Common pyroxene (Augite)

Ca(Mg, Fe 2+ , Fe 3+ , Ti, Al)[(Si,Al) 2 O 6 ] [Chemical composition] The amount of Al-substituted Si in ordinary pyroxene is slightly larger, and most of them exceed 5%. Some people think that Al-generation Si can reach 1/8 to 1/2. In addition, Ti 4+ and Fe 3+ are also present instead of Si. The

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