本合同自双方签字之日起生效，合同期满时自动终止。

This contract takes effect on the date signed by both parties and will automatically expire when the contract ends.

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该系统不仅具有卡片录入、查询、打印等基本功能，还具有电子签字、版本自动更新等辅助功能。

The system not only has basic functions such as card input and print etc, but also has assistant functions such as electron signature and automation update edition.

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用手提电脑称为传递信息采集器、司机自动捕捉起伏客户签字随着回升，配送，时间卡信息。

Using a hand-held computer called a Deliver Information Acquisition Device, UPS drivers automatically capture customers' signatures along with pickup, delivery, and time-card information.

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