用“acetylene”造句大全，acetylene造句
Alleneisanisomerofmethylacetylene.Therefore,high-qualityselectionofacetyleneitisparticularlyimportant.Acetyleneisaonehundred-year-oldmetalcuttinggas,acetyleneprocessofhighquantityofheat,highstabilityh...
用“acetylene generator”造句大全，acetylene generator造句
carbidetowateracetylenegeneratorwatertocarbideacetylenegeneratorThispaperanalysestheexplosivenessofacetyleneandcauseleadingtoexplosionofacetylenegenerator,andputforthspecificmeasurestoensuresafeoperat...
用“dissolved acetylene”造句大全，dissolved acetylene造句
ValvesfordissolvedacetylenecylindersPeriodicinspectionandevaluationofdissolvedacetylenecylindersMethodsoftestforporousmassofdissolvedacetylenecylinders...