物流业中委托书,委托该怎么翻译啊

正规叫法是 entrust

To give over (something) to another for care, protection, or performance:
委托：把某物交与他人以照顾、保护或运行：
“He still has the aura of the priest to whom you would entrust your darkest secrets”(James Carroll)
“他身上仍散发牧师的气味，使你愿将自己内心最深处的秘密交付与他”(詹姆斯·卡罗尔)
To give as a trust to (someone):
委托（某人）管理：
entrusted his aides with the task.See Synonyms at commit
他把这项任务委托给了他的助手们参见 commit

你可以对应地找一下物流相关的

委托书 [简明汉英词典]
a power of attorney
proxy
standing order
trust deed
委托书 [汉英船舶大词典]
letter of attorney ;letter of authorization ;proxy ;trust deed ;trustdeed
委托书 [汉英法学大词典]
letter of attorney; letter of authorization; power of attorney; proxy statement; trust deed; warrant of attorney
委托书 [汉英航海大词典]
letter of attorney ;proxy ;trust deed
委托书 [汉英化学大词典]
proxy ;trust deed
委托书 [汉英经贸大词典]
attorney's letter ;letter of authorization ;power of attorney ;proxy ;proxy statement ;tru