In this paper, the data memory technology of embedded USB host computer interface was described, which can meet the demand that a large amount of information stores in the greenhouse environment monitoring and controlling system.

Design of workshop environment monitoring and controlling system based on OPC technology

基于OPC的车间环境监控系统的设计

Taking the POD as an example, the remote monitoring technology is introduced including the hardware structure and software design for such systems.

以POD动力环境监控系统为例介绍这种监控系统的设计，包括系统的硬件结构与软件设计两个方面。

PLC, has been used widely in Industrial Control 、 Environmental Monitoring 、 Petrochemical Industry 、 Medical Treatment and Public Health 、 Consumer Electronics.

PLC，广泛应用于工业控制、环境监控、石油化工、医疗卫生、消费电子等领域。

In order to achieve the independence of monitoring unit and the wider use, the research and application of Web-based monitoring unit of room environment becomes a trend.

为了实现监控单元的独立性以及适应更广泛的运用，基于Web的中小型机房环境监控单元的研究和应用成为一种趋势。

First of all, this paper put forward the whole devise project after the analyze of latest research all over the world and the structure introduction of the environment in aquaculture. In the system, the main monitoring objects are dissolved oxygen, pH and temperature.

本文首先通过对国内外水产养殖环境监控研究现状的分析，提出了本课题的整体设计方案，确立了以溶解氧、pH值、温度为监控系统的主要监控对象。

Research on Monitor System for Artificial Environment by Double Computers Control

计算机主从控制人工生态环境监控系统的研究

This paper programs the Modbus slave in S7-200 PLC by using SIMATIC language and the Modbus master of the up monitoring software by using VC++ language, develops monitoring data integration of PLC controllers in temperature and humidity environment system.

采用SIMATIC语言编程实现了基于Modbus协议下的S7-200PLC通讯程序和用VC++实现的上位监控软件通讯程序，实现了温湿度环境监控系统中PLC控制器的监控数据功能集成。

Due to the success in the Internet on Ethernet technology application, prompting Ethernet technology constantly to join the traditional industry measurement and control, home network, environment monitor such multiple fields.

由于以太网技术成功在Internet上应用，促使以太网技术不断加入传统的工业测控、家庭网络、环境监控等多重领域。

The software is divided into five modules according to the function, which are MEA module, ECIS module, LAPS module, environmental monitoring module and flow injection analysis module.

软件按照功能分为五大模块：MEA模块、ECIS模块、LAPS模块、环境监控模块和流路分析模块。

Processing and analysis for micrograph of PM2.5 in atmosphere

大气PM2.5显微图像的处理与分析

S.government about air pollution in Beijing, based specifically on PM2.5 particles, paint a different picture.

美国这些数据主要是关于直径2.5微米以下污染颗粒物的。

Weekly and seasonal variations of PM2.5 concentrations were similar between the two sampling sites.

2个采样点PM2.5浓度的周变化与季节变化均相似。

Objective To understand the characteristics of indoor PM2.5 pollution in residential houses in Guangzhou.

目的了解广州市居民室内空气中PM2.5的污染特征并探讨其污染来源。

Characteristics of Indoor PM2.5 Pollution in Some Residential Houses in Guangzhou

广州市部分居室空气中PM（2.5）污染特征

The lead compounds, as components of PM2.5, play a certain role on lung injury.

说明铅化合物作为细颗粒物众多组分中的一种，在细颗粒物致肺损伤过程中发挥了一定的作用。

However they also discovered that it was much less likely to increase the death rate than PM2.5 in Europe and North America.

但研究人员也发现，与欧洲和北美的PM2.5相比，中国的PM2.5致命性要低得多。

Pollution levels and water-soluble ions of PM2.5 in atmosphere in Hangzhou

杭州市大气PM2.5污染水平及水溶性离子组成

Advances on the biological effect indices for fine particles ( PM2.5) in air

空气细颗粒物（PM2.5）生物效应指标研究进展

The correlation factors and pollution forecast model for PM2.5 concentration in Beijing area

北京地区气溶胶PM2.5粒子浓度的相关因子及其估算模型

The Research of Mathematical Model of Collection Efficiency of PM2.5 in Coal-fired Fine Fly Ash

燃煤飞灰中PM2.5捕集效率的数学模型的研究