factor of safety [= safety factor]  安全因素; 安全因数

ring-ring-section  偏心受压构件

e-business safety model safety strategy certificat  认证技术; 安全模型; 安全策略; 电子商务

safety conference on safety  安全会议

base-ring and frame-ring  基础环/座环

collector ring (slip-ring)  集电环

column-ring beam joint with shear ring bars  抗剪环-环梁节点

outside ring in-feed system ring  外环式进给

ring of n×n matrices over ring R  矩阵环

ring out the old year and ring in the new  辞旧迎新

ring upon ring  层层

Riser-ring and Ring Module  浇冒口

short-proof ring (arcing ring)  短路防止环; 引弧环

the Western Ring Road Sector of Central Ring Road  中环线西环段

anal ring hairs anal ring setae  肛门环刚毛; 肛门环刺毛; 肛门环刺

3-D safety factor  三维安全系数

6-Point Safety Belt  六点式安全带

a robot and Its associated safety mechanism  机器人与其连带的安全装置

a safety cultural system  安全文化体系