短語詞組短語pre bent compound beam 預彎復合梁Crossbar Bent Continuous Beam Law 縱橫彎曲連續(xù)梁法pre -bent combination beam 預彎組合梁level bent beam 水平折梁bent beam gauge 彎注型電離真空計bent beam ionization gauge 彎束型真空計compound bent beam 復合曲梁 返回 bent beam