锁环

Phase-locked loop is able to track the input phase of the closed-loop automatic control system.

锁相环路是一种能够跟踪输入相位的闭环自动控制系统。

PLL is able to track the input signal phase of the closed-loop automatic control system.

详细说明：锁相环路是一种能够跟踪输入信号相位的闭环自动控制系统。

First,the design method of human-center in CoEditor is expounded.

该文首先阐述了CoEditor的以人为中心的设计思想，然后就该编辑器实施中的4层文档库设计、人－人交互界面构造、对用户透明且加锁粒度可变的并发控制机制、跟踪闭环链的检测和解除以及以人为中心的检索等问题的实现方法进行了论述。

A variant of the combination lock employs a movable dial with a series of numbers around it in place of the rings.

一个组合锁变种雇用了一组数字周围一系列的环设立一个可移动的拨号。

A colliding pulse mode-locked unstable resonator Nd: YAG laser is designed, which consists of an antiresonant ring and a convex mirror.

设计由抗共振环和凸面反射镜组成的对撞脉冲锁模非稳腔Nd：YAG激光器。

The principle and way of dectecing ultrasonic displacement of solid surfaces with laser heterodyne and phase-lockedloop to demodulate are described.

论述了应用激光外差和锁相环解调原理探测固体表面超声位移的原理、方法，并利用激光外差干涉仪对固体表面的超声位移进行了探测，得到了很好的结果。

Digital phase lock loop is a key part of the digital demodulator.

数字锁相环是数字解调器的关键部件。

In this paper, a new method of PLL lock detector will be presented.

在本文中，我们将展现一个新的锁相环锁定检测方法。

The working principle, mathematical model and the implement method based on digital signal processor were expatiated.

本文采用的锁相环技术是在数字信号处理器等通用可编程器件上实现的。

In this paper, the design of the high-speed divider in the PLL frequency synthesizer is investigated.

对锁相环型频率综合器中的高速分频器进行了较为深入的分析。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。