日产日清、流动清扫、垃圾清扫器具美观、整洁,与景观环境相协调。
A.耐拉力强,耐疲劳能力强,耐腐蚀 B.具有较大的抗磨性和抗横向冲击能力 C.弹性模量越大越好 D.表面尽可能平滑、柔软,便于搬迁 E.易于插接,不自转,不回捻
A.0.8 B.1.2 C.1.6 D.2
A.The Development and Design of Strop Ropeway B.The Development and Design of Passenger Ropeway C.Surveying and Designing of Cableway D.Installation and Management of Cableway
A.SJ-23A B.SJ-23B C.SJ-23C D.SJ-23D E.闽林721 F.闽林821
A.2 B.3 C.4 D.6
A.100MPa B.105MPa C.110MPa D.115MPa