To determine the shipping criterion of bridges a nd provide the foundmentary material for the design of bridges, it is necessary to survey the shippingtrack and speed of all kinds of ships.
为了确定桥梁的通航标准，给桥跨和桥墩位的设计提供基 础资料，需要对各种船舶的航迹和航速进行测量。
2
The orders form contains several private fields that are only to be used by the shipping company to track orders.
订单表单包括几个私有字段，只供运输公司追踪订单时使用。
3
The automotive industry has been an early user of this track and trace technology in shipping containers.