查询词典 sufficient supply

In recent years, with the socio-economic development, land supply and demand have become increasingly conspicuous.

近几年来，随着社会经济的发展，土地供需矛盾日益突出。

Demonstrates composition and function of a constant pressure water-supply system controlled by PLC and frequency converter as well as the design of each function module.

阐述了基于PLC和变频器控制的恒压供水系统的组成、功能及各功能模块的设计方法。

MCGS and constant pressure water supply system of integration automation experimental facility

介绍了以变频器构成的新型恒压供水系统，详细说明了系统原理、结构以及具体器件的选择。

In this paper, MODBUS bus in VVVF control system applied constant pressure in the water supply system was discussed.

本文对MODBUS总线在变频调速控制系统在应用于恒压供水系统进行了探讨。

To resolve this problem, I have designed a constant pressure water supply system using PLC and VVVF.

为了解决这个问题，于是我设计了一套全自动管网叠压变频调速供水设备。

Current research on the constant pressure water supply control and developed system for high building has their own advantages.

目前对高楼供水恒压控制的研究以及已开发的系统各有所长。

And Guangzhou statistical contrast, sales increased 12%, but the supply has been reduced by 20%, prices rose by 15%, the price is Constant After Winter in Beijing.

而广州的统计则相反，销量增加了12%，但供应却减少了20%，价格则上升了15%，北京的价格也是稳中有升。

At a constant price, the supply of of commodity is positively proportional to its profit.

价格不变，则一类商品的供应数量与其所获利润成正比例。

With constant velocity, the money supply determines the value of nominal output in the short run.

假设周转率是固定的，那么在短期的经济行为中，货币的供应水平决定了名义上支出的价值。

The theory is that, given constant supply pressure, restricting volume will increase velocity.

理论是，由于供应压力、限制数量将增加速度。

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。