The switch case in tcp_usrreq() calls in_pcbbind(), which binds the local address and the port number to the socket.

In_pcblookup() verifies if the local address and port pair is not already in use.

in pcblookup（）验证本地地址和端口对是否仍未使用。

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Local port access authority management policy offers information of source IP addresses and ports which are allowed to access the local application layer service ports. We set access authority for local ports, which allowed specific source IP address and port to access.

其目的是为本地应用层服务端口设置允许访问的源IP地址和端口号信息。

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If the local port specified is a non-zero value, a check is made for the super user privilege if the binding is on a reserved port ( for example, port number < 1024, per Berkley convention).

如果指定的本地端口是一个非零值，则对超级用户特权进行检查，以确定绑定是否位于保留的端口（例如，根据Berkley约定，端口号

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Firstly, we make analysis about the structure and limitations of Snort rule base which is divided into the rules according to ports, and bring in a local port access authority management policy combined protocol analysis technology.

论文首先对Snort规则库的组织结构进行分析，针对Snort规则库以端口号划分规则的不足之处，结合协议分析的特点，引入了本地端口权限管理策略。

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The paper introduces basic functions, concept and working principle of firewall, and realizes firewall to listen remote port, local port and IP address. There are some regular options in this firewall.

介绍了防火墙的基本功能、基本概念以及工作原理，实现了防火墙对远程端口、本地端口和IP地址的监听。

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The local port access authority management policy not only has an effective management on access violation, but also can accelerate the rule-matching because we separate illegal access rules from rule base.

该策略不仅能有效管理本地端口的非法访问行为，并且将非法访问策略从规则库中分离出来而加快匹配速度。

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Conduct quality inspection on them and shall send the inspection result to the local port drug administration.

进行质量检验，并将检验结果送交所在地口岸药品监督管理局。

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The switch case in the tcp_usrreq() function checks for the binding of a local port with the socket.

tcp usrreq（）函数中的切换实例检查套接字与本地端口的绑定。

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Local port forwarding is used to access a service on a remote machine by accessing the local machine.

本地端口转发是用于访问远程计算机上通过访问本地计算机上的服务。

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With the development of radar and wireless communications, the request for the local oscillator is higher and higher in the system.

随着雷达和无线通信事业的不断发展，系统对本振源提出了越来越高的要求。

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Local Oscillator Design in the Wideband DOA-Finding system with Spatial Spectrum-Estimation Technique

宽波段空间谱估计测向系统的本振设计

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Close attention need to be pay towards low-phase noise in the design of local oscillator source.

本振源的低相位噪声是本振源设计主要关注的指标。

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Design and Fabrication of C Band Low Cost Frequency-variable Broad Band Phase Locked Local Oscillator Source

低成本C频段宽带变频锁相源的设计与实现

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Digital Phase-locked Local Oscillator for Frequency Agility Radar

用于捷变频雷达的数字锁相本振跟踪源

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This thesis is about the design of local oscillator circuit for wireless communication system in standard digital CMOS technology.

本篇论文的主题是在标准数字CMOS工艺条件下，研究单片集成无线通信系统中本机振荡电路的设计。

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Analysis of local oscillator tracking error in frequency agile radar of rotary tuning magnetron type

旋转变频频率捷变雷达本振跟踪误差的分析

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The polarization direction of signal is required to match with that of local oscillator.

在相干光通信等方面，要求信号光与本地振荡光偏振方向相匹配。

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Linearization Device of Local Oscillator for Frequency-Agile Radar and Its Automatic Measurement System

频率捷变雷达本振源线性化器及其自动测试装置

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Design of local oscillator for GPS receiver

GPS接收机本地振荡器的设计

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A Local Oscillator of a Demonstrative Model of the Receiver of the FAST

FAST模型接收机中的本地振荡器

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