NetKeeper 具深层封包检查 (packet deep inspection) 能力，除了检查第四层封包外，更能深入检查到第七层的封包内容，以阻挡恶意的攻击码的穿透，同时不影响正常程序的工作。
基于20个网页-相关网页
使用一种状态封包检查 Stateful Inspection
深度包检查 Deep Packet Inspection ; DPI
深度数据包检查 Deep Packet Inspection ; DPI
X射线行李包检查系统 X-ray luggage inspection system
包检查请 Packet inspection please
状态包检查 StatefuI Packet Inspecting
数据包检查请 Packet inspection please
该安装包检查你已经在机器上安装的产品，只下载必需的升级包来使其升级到SP1。
This installer examines what you have installed on your machine, and only downloads the servicing downloads necessary to update them to SP1.
大多数组织使用日历年、税收年或财年校准员工薪资包检查以确定检查周期。
Most organisations align their employee package reviews with the calendar using the calendar year, the tax year, or the financial year to determine the review cycle.
目的检测某机场X射线行李包检查系统辐射，并进行辐射安全性评价和放射性豁免分析。
Objective to monitor the dose of the radiation monitoring, to assess the safety and analyze the radioactivity exemptions of the X-ray luggage inspection system at an airport.
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