dra
英
美
abbr. Doppler radar 多普勒雷达; dead-reckoning analyzer 航位推测分析器
复数：dras
BNC.31306
双语例句
- This research provided guarantee for industrialized producing of DRA.
本研究为减阻剂的工业化生产提供了可靠保证。 - This article summarizes the development of the fiber optical Raman amplifiers and theory and features of distributed fiber Raman amplifier, mainly describes the combined application of EDFA and DRA.
概述了光纤喇曼放大器的发展情况、分布式喇曼放大器的原理和特性，重点阐述了掺铒光纤放大器与喇曼放大技术的组合应用； - Therefore, the study of DRA was of great significance for national economy.
研究高聚物减阻剂对国民经济有很重要的意义。 - EP-W203/ H DRA is a ultra-high molecular polymer, which can reduce the pressure loss of pipe flow.
EP&W203/H型减阻剂是一种超高分子聚合物，注入管道后可以降低管流的压力损失。 - The site application results show that applying HG DRA not only obtain satisfactory drag reduction effectiveness and increase transportation capacity of pipeline, but also ensure the safe operation.
现场应用结果表明，添加HG减阻剂不仅具有较好的减阻效果和增输能力，提高了输送的经济效益，同时保证了输油生产安全平稳运行。 - Lygodium japonicum; polysaccharide ( PSA); response surface methodology ( RSM); dimension reduction analysis ( DRA);
海金沙草；多糖；响应面分析；降维分析； - In the second multifunction part, the idea of using the DRA as an oscillator load is proposed.
在第二个多功能部分，提出了使用介质谐振器天线作为振荡器负载的思想。 - On this basis, the geographic-position-based satellite communications network is proposed, in which the DRA routing algorithm is used.
在此基础上，提出了基于地理位置的卫星通信网络，空间网络部分使用DRA路由算法。 - Aimed at the fault of the Taguchi method, the paper investigates the parameter design problem from an economic point of view in the base of DRA.
针对田口方法的不足，本文在双因子方法DRA（dualresponseapproach）的基础上从经济的角度讨论了参数设计问题。 - Objective To investigate the prevalence and risk factors of dialysis-related amyloidosis ( DRA).
目的了解长期血液透析（HD）患者透析相关性淀粉样变（DRA）的发病率和相关因素。