A standard configuration is for a carrier is to use half of each block to send a signal, and half to receive (outbound and inbound traffic).

运营商的一种标准配置是使用一半的块来发送信号，另一半接收(即下行和上传通道)。

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The football player threw a block that knocked the ball-carrier out of bounds.

那足球运动员飞身阻挡对方的带球队员，把他摔到了场外。

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Then, the system block of two chaotic communication system is given, I, e. chaotic carrier modulation system and chaotic carrier key system.

在此基础上给出了两种混沌保密通信系方案，即混沌载波调制系统和混沌载波键控系统。

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Industry watchers say Verizon has a clinch on the C block while another carrier, perhaps Alltel (nyse: AT - news - people ), likely has won one or two licenses.

FORBES: Google Likely Out, And Happy

In that scenario, says Free World Dialup's Pulver, a carrier could block service and effectively make its own VoIP product the only available option.

FORBES

Does the President support a plan that, according to critics, would allow a carrier such as Verizon or any other carrier to block users from using a service that competes with a service they offer?

WHITEHOUSE: Press Briefing