propeller with ring quard带: belt; girdle; ribbon; band; ...护: protect; guard; shield环: ring; hoop的: 4次方是 The fourth power of 2 i ...螺旋桨: screw propeller; propeller; ...下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:带护环的螺旋桨,即可在微信中查询翻译