palletn.简陋的小床；托盘pallet loading problem托盘装箱问题Palletized Load System托盘化装载系统pallet standardization托盘标准化Pallet Transporter Unit托板化运输设备pallet conveying system托盘式运输pallet universal loader货盘通用装载机palletized transfer line随行夹具式组合机床自动线pallet fork-lift truck托盘叉式起重车pallet for handling goods搬运货物的托盘Palletized Loading System托盘化装载系统