链锯脚部保护的标准规范的英文

standard specification for foot protection for chain saw users

• 链锯:    chain saw; link to ...
• 脚:    role; part; charac ...
• 部:    part; section; div ...
• 保护:    protect; defend; g ...
• 的:    4次方是 The fourth po ...
• 范:    pattern; mould; ma ...