The designed DCXO adopts Pierce architecture. The frequency drift correction is done by using a 6-bit automatic frequency control ( AFC) signal generated by the feedback correction loop between the oscillator and the base band. The long term stable frequency output has been obtained.

Preparation of CuSO 4 · 5h 2O by using waste Cu Zn Al catalyst

由废Cu-Zn-Al催化剂制备硫酸铜

The cuso in the mass media is a new cultural landscape.

网络恶搞是大众传媒中产生的一种新的文化景观。

Adding the additives into chemical displacement Cu plating solution of CuSO 4-H 2 SO 4 and adjusting process parameter, high binding strength displacement copper coat whose thickness is 0.1~ 0.3 μ m can be obtained in 2~ 5 s.

在以硫酸铜和硫酸为主要成分的化学置换铜溶液中加入专用添加剂，并通过调整工艺参数，可在2～5s的反应时间内得到0.1～0.3μm厚度的高结合强度的置换铜层。

In this paper, we study the effect of As 5+, Sb 3+, Bi 3+ on kinetics of cathodic deposition of copper in acidified CuSO 4 system at quasi steady state condition by linear potential sweep method.

用线性电位扫描法研究了在准稳态条件下，As5＋、Sb3＋、Bi3＋离子对酸性硫酸铜体系中阴极铜沉积反应动力学的影响。

Application of sj-600 type LCU new field control apparatus in DAAO HYDROPOWER PLANT

SJ-600型LCU新一代现地控制装置在大坳水电厂中的应用

Present assessment of environmental quality in sea area near Daao, Liuheng Island

六横大岙附近海域环境质量现状评价

Brief discussion of diversion tunnel construction of the DAAO hydraulic project large span steel bridge

谈大坳水利枢纽工程导流隧洞的施工

Experience in Online Monitoring of the Generator Unit Vibration Monitor Used in Daao Hydropower Plant

大坳水电站机组振动摆度监测仪在线监测应用心得

The hydromechanical automation design of the full computer monitoring system of DAAO HYDROPOWER STATION

大坳水电站全计算机监控系统水力机械自动化设计

Brief introduction of computer monitoring system on DAAO HYDROPOWER STATION

大坳水电站计算机监控系统简介

Talk about the investment control key during the construction of DAAO hydraulic engineering

浅谈大坳水利枢纽工程施工期间的投资控制重点

The formation of free radicals OH and H in a naturally air-saturated aqueous solution exposed to therapeutic CW ultrasound at the frequency of 820 kHz has been confirmed by using spin trapping 5, 5-dimethyl-1-pyrroline-1-oxide ( DMPO) and electron spin resonance ( ESR) technique.

本文利用5,5-dimethy1-1-purrolinel-oxide（DMPO）自旋捕集剂及电子自旋共振（ESR）技术研究证明，理疗级超声辐照可在自然空气饱和的水溶液中导致OH及H自由基的形成。

The purpose of this study was to compare the dosimetric differences between traditional technique and direct machine parameter optimization ( DMPO) technique in the treatment of nasopharyngeal carcinoma ( NPC) using step and shoot IMRT.

本研究比较鼻咽癌静态调强放射治疗（IMRT）中采用直接机器参数优化（DMPO）技术和传统技术的剂量学差异。

Objective To compare two planning modes, multiple-step ( MS) and direct machine pa-rameter optimization ( DMPO) modes, for intensity-modulated radiation therapy.

目的分步设计和直接子野优化是设计静态调强放疗计划的两种模式，本研究比较两种计划模式的特点。

Their scavenging effect on Hydroxyl free radicals have been studied by ESR technique with DMPO as spin trap.

其中（4）为新化合物。用电子自旋共振技术（ESR）研究了它们对羟自由基即（·OH）的清除作用。

ESR Studies of Radical Produced in the Photosensitive Systems of Hematoporphyrin Derivatives by Spin Trapping Agent DMPO

在血卟啉衍生物光敏体系中DMPO捕集自由基的ESR研究

It was the Welshman, Davo, who said that. They went along together because he knew the way, "Not many would bother with your toothache," Davo said.

那话是那个威尔士人达沃说的，当时他们正搭伴一块儿往前走，因为他认识路。“没有多少人会为你的牙痛操心的。”他说。

With the help of Kuroi, a master of martial arts, will be able to defeat Davo and his follower.

在一位武术大师的帮助下，他们将有能力打败达夫和他的手下。

For example, counter-current extraction and parallel-current stripping with alternative arrangement can increase mass transfer efficiency for extracting H3 PO4 with Di-n-Butyl Sulfoxide ( DBSO).

做为例证，对于二丁基亚砜（DBSO）萃取磷酸体系进行计算，利用逆流萃取并流反萃交替过程可能得到更高的传质效率。

Analysis of environmental data at operative sea area for a FPSO

浮式生产储油船设计环境资料分析