Some service providers help screen out some pop-up ads, but ads can bypass many of the systems that block them.

某些服务提供使用者帮助搜寻出一些跳出视窗广告，但广告可以穿过许多阻挡他们的系统。

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Major systems commonly include bypass tunnels, greenbelts, and roads which are used to handle the runoff which exceeds the capacity of the minor drainage system.

大型系统通常包括旁路通道，绿化带和道路，用来处理超过小型排水系统处理能力的径流。

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They are similar to the Navy SEALs in that they are heavily trained in airborne and combat diving techniques in order to allow them to bypass traditional land defense systems.

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"The last thing the big guys want is to rationalize the system and commoditize themselves out of business, " says Paul McBride, chief financial officer of InterNap, a builder of systems that bypass peering points.

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In January of last year, cybersecurity researcher Travis Goodspeed gave a presentation at the S4 conference in Miami where he described a way to bypass encryption on Zigbee wireless chips, which some smart electric metering systems would use to communicate.

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