基本解釋[交通運輸工程]免費維修服務英漢例句雙語例句Maintenance-free design, long service life.免維護設計,使用壽命長。Easily installed - maintenance free- almost unlimited service life - simple - safe - reliable - efficient.安裝簡便-免費維修-最佳的使用壽命-簡單-安全-可靠-有效。www.e-gtm.com.cnThe sealed spherical roller bearings are protected against both particle and moisture contamination, enabling them to offer effective performance over long, virtually maintenance-free service lives.這個密封的球面滾子軸承的保護,以防止顆粒和水分的污染,使他們能夠提供有效的長期業(yè)績,幾乎免維修服務的生命。maintenance-free service更多例句專業(yè)釋義交通運輸工程免費維修服務