The most commonly used tracking method is air waybill tracking.

最常用的追踪方法，就是空运提单追踪。

Descriptions of the goods concerned and the number of air waybill, mail bags, baggage tags and tickets;

有关货物的描述及货运单、邮袋、行李标签和机票等的号码；

The invalidity or unenforceability of any provisions shall not affect any other part of this air waybill.

任何规定的无效或不可执行不得一下本空运单其他规定的效力或执行。

And it is submitted to Baiyun Airport Customs House as well as the air waybill by the carriers of Truck-Airline.

白云机场海关审核无误的，核销转关电子数据。货物和运单资料由承运人或其代理人交航空货运部门办理货物发运手续。

It is to the author's opinion that under current legal system, Air Waybill is nothing but a document of evidence.

作者认为：在现行制度下，航空货运单仅具“证据文书”性质。