chain guard  链起重; 护链装置; 护链罩; 链护罩

chain guard device  导链装置

drive chain guard  传动链条罩

safe-guard chain door lock  防盗门锁

chain track guard  护链槽

safe-guard door chain  防盗门链

chain risk of supply chain  供应链链风险

chain to chain competition  链与链竞争

close-link chain [= short-link chain]  短环链; 口字链

heavy chain h chain  重链

multi-pulse mode chain {= MP mode chain}  多脉搏型链

the system of supply chain and reverse supply chain  供应链、逆向供应链系统

variable region gene of heavy chain and light chain  可变区重链和轻链基因

advance guard  前卫

air intake guard mechanism  进气口防扩装置; 平均每人国民生产毛额

air pump guard  气泵防护器

air take guard mechanism  进气保装置; 声子玻尔兹曼传输方程

alternator fan guard  交流发电机风扇罩

alternator guard  交流发电机保护装置