查询词典 hands of a clock or watch

By utilizing the cross-gain modulation effect and the period-one oscillation harmonic frequency-locked in an optically injected semiconductor laser, we can extract the wavelength conversional individual channel optical clock from the optical-time-division-multiplexing signal. In a FP-LD, we numerically simulate the extraction of 20 GHz optical clock at 1550 nm from the 2×20 Gb/s OTDM signal at 1555 nm, and experimentally obtain the -105 dBc/Hz phase noise frequency division clock of 12.36 GHz to 6.18 GHz with simultaneous wavelength conversion from 1550.24 nm to 1545.91 nm.

采用一个FP半导体激光器作为全光分路时钟提取及波长转换器，数值模拟实现了从波长为1555 nm、速率为2×20 Gb/s的光时分复用信号中提取出波长转换为1550 nm、重复频率为20 GHz的分路光时钟，实验完成了从波长为1550.24 nm、重复频率为12.36 GHz光脉冲信号中提取出相位噪声为-105 dBc/Hz的波长为1545.91 nm、重复频率6.18 GHz的分频光时钟。

Clock sources are 508 kHz and 2 kHz. Both of these clock sources aresynchronized to the main system AHB bus clock.

时钟资源是508KHZ和2KHZ，这两个时钟资源都与主要系统AHB总线时钟同步。

To support these clock rates, a reasonable solution is to clock the ADC and DAC at a fixed master clock rate and perform sample rate conversion completely in digital domain.

为了支援这些标准，比较合理的作法是让类比转数位和数位转类比转换器工作在固定的频率，利用数位的作法改变取样频率以支援不同的通讯协定。

During 6:00-10:00 o'clock period, climbing of photosynthetic rate P(subscript n was primarily caused by photosynthetic active radiation, leaf temperature, relative humid. Descending photosynthetic rate P(subscript n from 10:00 o'clock to 14:00 o'clock, especially "middy depression" was mostly caused by stomata factor.

早晨6：00-10：00期间，光合速率的上升主要是光合有效辐射、温度和相对湿度造成的。10：00-14：00期间，光合速率的降低，尤其是"午休"期间的下降，气孔因素是主要限制因子。

According to the chicking equipment for volt-monitor need to build up a standard clock,in order to achieve the request that the instrument carry on time accurate checking to the volt-monitor,this text introduced principle of the oscular clock chip PCF8583 with I2C bus,put forward to make use of the DS32KHz to provide the high stable frequency signal for PCF8583, thus carried out the project of the standard clock, and the interface design of PCF8583 with MCS51 is presented.

根据电压监测仪校验装置需要建立一个标准时钟，对电压监测统计仪进行时间精度校正的要求，介绍了I2C总线接口时钟芯片PCF8583的基本原理，提出了利用DS32KHz给PCF8583提供高稳定度频率信号，从而实现了标准时钟的方案，并给出了PCF8583与MCS51单片机接口设计。

Second, the instructions 1, remote control buttons: 0-9 keys, the red button to reset button,"SET" button to SET for the end,""," CLEAR "key to remove key,"▲"as is"▼ timer starts,"for the countdown began," on "and" pause key for ∨"to" TIME ","MODE" button, the clock display keys,"the timing for 1" for 12 hours system clock,"2" for 24 hours system clock.

二、使用说明 1、遥控器按键说明：0-9数字键、红色键为复位键，"SET"为设置键，""为结束键，"CLEAR"为清除键，"▲"为正计时开始键，"▼"为倒计时开始键，"∧"为暂停键，"∨"为继续键，"TIME"为时钟键，"MODE"为计时显示键，"1*"为时钟12小时制键，"2*"为时钟24小时制键。

At present , The JiaWei designs and produces all kinds of cassette mechanism of quartz clock,including cassette mechanism of alarm clock,stopwatch and pendulum clock.

当前，加威所设计生产的石英钟机芯种类齐全，有闹钟机芯、扫秒机芯和摆钟机芯，以优良的品质，赢得了国内外市场的广泛认可。

At present , The JiaWei designs and produces all kinds of cassette mechanism of quartz clock,including cassette mechanism of alarm clock,stopwatch and pendulum clock. The products win the authorization from both markets in and abroad.

当前，加威所设计生产的石英钟机芯种类齐全，有闹钟机芯、扫秒机芯和摆钟机芯，以优良的品质，赢得了国内外市场的广泛认可。

A DPC ( 300 ) includes: a frequency source ( 310 ) for generating a clock signal; a delay line ( 320 ) for receiving the clock signal and generating phase-shifted clock signals at output taps; a digital control device ( 330 ) for generating a control signal; and a windowing and selection circuit for generating the output signal, that includes sequential logic devices ( 500, 510, 520 ) and a combining network.

DPC(300)包括：频率源(310)，用于产生时钟信号；延迟线(320)，用于接收时钟信号并在输出抽头产生相移时钟信号；数字控制器件(330)，用于产生控制信号；以及开窗口与选择电路，用于产生输出信号，包括：时序逻辑器件(500、510、520)和组合网络。

In clock routing,clock signal and clock skew become more and more important for impact of the circuit performance.

在时钟布线中，时钟信号和时钟偏差对电路性能的影响越来越明显。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。