调制解调过程中，滤波是一个必不可少的环节。
During modulation and demodulation, filter is an important step.
隧道窑温度检测是陶瓷生产过程中必不可少的环节。
The temperature monitoring of tunnel kiln played a necessary role in pottery manufacturing.
这些试验，是获取认可资格程序中，必不可少的环节。
This testing forms an essential part of the overall procedures required as part of the accreditation process.
镜头的研制是OT F测定仪标定中必不可少的环节。
The development of OTF standard lens is a key link in the calibration of OTF tester.
土壤水分特征曲线是土壤水分运动研究必不可少的环节之一。
The water retention curve is one of the essential links to study the soil water movement.
农作物病虫害监测是有害生物综合防治必不可少的环节之一。
It is necessarily to monitor crop diseases and insect pests in integrated pest managerment.
热量表作为一种计量装置，出厂之前的标定是必不可少的环节。
As a kind of metering devices, the calibration for heat meters is necessary before they are delivered.
为了更好进行运动车辆检测，遮挡检测成为一个必不可少的环节。
In order to get the moving vehicle detection, vehicle occlusion detection is as an essential link.
边缘检测是机器视觉中必不可少的环节，是一种重要的图像预处理技术。
Edge detecting is an indispensable step of computer vision. It is a important procedure of image preprocessing technology.
边缘检测是图像分析识别必不可少的环节，是一种重要的图像预处理技术。
Edge detection is an essential step in image analysis and recognition, and it is an important technology in the image preprocessing procedure.
海洋重磁资料的平差处理是海洋重磁资料处理过程中必不可少的环节之一。
Adjustment processing is one of indispensable procedures ofr Marine gravity and geomagnetic data processing.
边缘检测是图象分析识别前必不可少的环节，是一种重要的图象预处理技术。
Edge detection is an indispensable step before image analysis and recognition, and is an important technology in the image preprocessing procedure.
为了保证桥梁施工质量和桥梁施工安全，桥梁施工控制是必不可少的环节和措施。
The bridge construction control is essential measure and step to ensure the quality and safety in the procedure of the bridge construction.
家法族规研究是解析中国古代法律的多元性、层次性和结构性特征必不可少的环节和内容。
The family discipline clan regulations research was analyzes China ancient times legal polytrophic, the hierarchical and the constitutive characteristic essential link and the content.
自动控制原理是学习自动控制技术的一门重要专业基础课程，实验教学是必不可少的环节。
The course of automation control principle is one of the most important basic courses, in which experiment teaching is very important part also.
程序编制：编制出实用的分析程序是有限元分析课题必不可少的环节，也是本文的最终目的。
Program design: to work out a utility analysis Program is the absolutely necessarily tache of finite element analysis, and also is this discourse's finally aim.
由于深空信道的极低的信噪比，具有高增益的信道编码技术是深空遥测系统必不可少的环节。
The signal to noise ratio in the deep space communication channel is so low that high quality channel coding scheme is essential for deep space comnunication systems.
群首委任机制是分群工作的一部分，也是实现分层分布式网络管理思想的一个必不可少的环节。
The Cluster Head Delegation mechanism is the part of work of clusting, and it is an essential part of the implementation of the hierarchical and distributed network management system.
在艺术珍品保护或者古器物修复中，提取相关碎片的轮廓并进行曲率计算是其必不可少的环节。
Contour extraction and curvature calculation is absolutely necessary for fragment reassembly in art conservation or artifacts restoration.
航相机照相时不可避免的会产生像移，像移补偿是提高成像质量和相机分辨力必不可少的环节。
It is inevitable to have image motion in photographing of aerospace camera, thus image motion Compensation (IMC) is necessary for improving the quality of imaging and the resolution of the camera.
我国建筑企业在承包国际工程时，聘请代理人为其提供信息咨询服务已成为一个必不可少的环节。
Employing an agent to provide consultant service of information is a key program when Chinese building firms contract with an international plant engineering.
在混合堆包层和快堆的中子学设计中，考虑共振自屏效应已成为中子学计算中一个必不可少的环节。
It is not allowed to neglect the resonance self-shielding effect in hybrid blanket and fast reactor neutron designs.
高精度的图像处理技术是视觉测量中必不可少的环节，如果在这个步骤中引入较大的干扰误差，前面和后续的工作将失去意义。
Since image is collected by CCD of sensor, so image pretreatment and characteristic point's arithmetic have an effect on the whole component measurement precision.
正确的发声一定要有一个良好的呼吸基础，歌唱呼吸方法是实现歌唱机能调节必不可少的环节，也是歌唱表演中的重要技术之一；
Proper sound production is based on good respiration, which is a necessary link in the adjustment of singing function, as well as an important skill in the performance.
应用实践表明，不停车清洗预膜方案及技术有助于循环水系统的长周期高效运行，也是循环水系统正常运行必不可少的环节之一。
The implement efficiency is analyzed and evaluated. Many practical evidences show that this technology is good for running the projects efficiently in a long period.
在和客户沟通的过程中，有一个环节是必不可少的，那就是谈判。
In the process of communication with customers, there is a link is essential, that is, negotiations.
对磨削弧区温度进行在线监测，是磨削加工自动化中必不可少的重要环节。
On line monitoring for grinding arc temperature is a necessary and important section to realize automation of grinding process.
化学作为一门实验科学，毫无疑问，实验是必不可少的教学环节。
Chemistry is an experimental science, it is no doubt, a lot of experiments is must be done.
鉴赏，是文学价值实现的必不可少的关键环节；而审美自由与超越是文学鉴赏得以展开的基本前提。
Appreciation is an indispensable key link in the realization of the literary values of a literary work; aesthetic freedom and transcendance is the prerequisite for literary appreciation.
染色体作为主要的遗传物质DNA载体，研究它的结构和功能是细胞遗传学必不可少的重要环节。
It is an important process of cytogenetics to study the structures and functions of chromosome, the main carrier of genetic material DNA.
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