The ingenious collocation of potted plants and seamless…

Plants can absorb oxygen through the photosynthesis of carbon dioxide, so people are seen as a major "freshener" of the air. Due to the relatively closed interior space, people also like to put a few potted plants in the room to escort the air quality. Of course, we also need to understa

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Boronite (Ludwigite)

(Mg,Fe) 2 Fe 3+ [BO 3 ]O 2 Chemical composition B, Mg, Fe and Mg 2+ Fe 2+ between fully isomorphous ore, according to the content of Mg2 + can be divided into two subspecies: boron, magnesium, iron, magnesium and iron, boron and magnesium ore. Fe 3+ can be replaced by Al 3+ (≤11%). [Crystal

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The 72 O 2 twisted rudder ship cavitation observation m…

It is reported that CSSC's Stealth Scientific Research Department's real-cavity cavitation observation test team has successfully completed a ship's twisted rudder ship's cavitation observation mission. The twisted rudder test obtained clear rudder bubble images from different angles

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What should I do if nobody is warm at home during the d…

Warm installation of heating As the currently accepted most comfortable and natural heating method, it has entered thousands of families. As we all know, the warming of the ground is slower, and heating must be turned on throughout the day to achieve more comfortable results. Some office workers can

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Mainly develop the selection principle of the roadway a…

1. Principle: When arranging the wellbore along the strike, it should be considered that the total transport capacity of the ore is small and the transportation cost is the lowest. 2. Transportation work: The product of ore weight and transportation distance, expressed in t·km. The position of t

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Serpentine

Mg 6 [Si 4 O 10 ](OH) 8 [Chemical Composition] Instead of Mg, there are Fe, Mn, Cr, Ni, Al, etc., so that corresponding component variants can be formed. [Crystal structure] mainly monoclinic system; Cm or C2/m; a 0 = 0.53 nm, b 0 = 0.92 nm, c 0 = n × 0.73 nm (n is the number of repeating laye

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Made of UHV flexible DC transmission valve come out

July 6, with the completion of the AC-DC test between the valve terminals, the ± 800kV / 5000MW UHVDC converter valve independently developed by the enterprise owned by China West Electric Group successfully passed the insulation test And run the test, the indicators meet the IEC62501 requireme

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