查询词典 radiophone

This thesis presents detailed analysis and computer simulation of the influence of the operator's body on the performance of the portable radiophone in urban mobile environments. An approach called modified Doppler power spectrum method is proposed to study this problem.

论文提出改良式都卜勒功率频谱法、及直接分离式多重路径法来分析并模拟计算，通讯性能评估系架构在错误向量量度及位元错误率，电脑模拟使用之调变系统为数位调频及π/4-DQPSK。

It modify covers the alacritous breaking earth of evoked pluripotent halt cells, somatic cells that were reprogrammed by the transfection of as lowercase as 3 genes whose factor products crapper re-set the genome of a grown radiophone to that of a pluripotent cell.

它甚至涵盖了诱导多能干细胞领域的快速突破细胞，体细胞，这些由低至3个基因，其基因产物能重新转重新规划设置了多能干细胞的成熟细胞的基因组了这一点。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。