词汇	safety ring
释义	safety ring 安全环,保险环
随便看	twocolor injection moulding machine two color injection moulding machine two-color intense laser field Two Color IR Two-color laser field two-color laser ranger twocolor magnoliavine root and stem two-color method two-color mold twocolor molding two color molding twocolor moulding two color moulding two-color offset press two-color photoelectric photometry two-color photography two-color photometry two-color plastic part two-color plating twocolor printing two color printing two color process two-color process two-color pyrometer two-color reproduction