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Under the spread of the new crown epidemic, after Americans experienced life and death, they set off the largest "resignation wave" in history, and the number of resignations broke the highest record since statistics began in 2000. Since April this y…
Koalas were declared endangered in eastern Australia on Friday, with more and more koalas dying from disease, habitat loss, and other threats. Earlier, the koala was considered a vulnerable species, and the Commonwealth Department of the Environment…
SLS Nylon Powder PrintingNylon sintering (selective laser sintering) is a project that uses spread powder sticks to tile a thick layer of powder materials, such as 3D printed metal powders, on parts. It is heated below the powder melting temperature…
Tripropylene monomethyl ether has a low toxicity and is nearly odorless. It is also completely water soluble, and it is soluble in many polar and a non-polar substance. Tripropylene Glycol Monomethyl Ether (TPM) : The vapor pressure is low an…