The Means and Countermeasures of Improving the Students' Abilities in English Speech Contests

To introduce key features of successful English speech and presentations.

介绍成功的英语演说与简报要素。

Study on reliability evaluation for pipe irrigation system

管灌系统可靠性评价研究

An Exploration of Measurement on the Utilization Rate of Water in Irrigation System

渠系水利用率测定方法初探

Development of wireless sensor networks in precision irrigation system for crop

作物精量灌溉系统的无线传感网络应用开发

Finite element method for hydraulic computation of pressure irrigation system

压力灌溉系统的水力计算有限元分析

Combinative Operation of Surface Water and Ground Water in Irrigation System

灌区内地表水与地下水的联合运用

Design and Construction of Spray Irrigation System in Landscape Engineering

浅议园林绿化工程中喷灌系统的设计和施工

Application of Linear Quadratic Gaussian Control to operation of irrigation system

应用线性二次高斯控制进行灌区调度

General model and solution of irrigation system optimization in irrigated area

灌区灌溉水系统优化综合模型及求解

Design of precision irrigation system based on wireless sensor network and fuzzy control

基于无线传感网络与模糊控制的精细灌溉系统设计

Water Level Control Methods and General Control Devices in Drip Irrigation System

滴灌系统水位控制方式及常用控制装置

The Application of Wireless Communication Network in Agricultural Irrigation System

无线通信网络在农业灌溉系统中的应用

Application Research on the Agricultural Saving Water Irrigation System Based on Embedded System

基于嵌入式系统的农业节水灌溉系统的应用研究

Principle of negative pressure difference irrigation system and feasibility experimental study

负压自动补给灌溉原理及可行性试验研究

The canals and ditches formed a complete irrigation system.

大小沟渠，成龙配套。

The model shows the whole project of the irrigation system.

这个模型展示该灌溉系统的全貌。

The rivers merge just north of a vital irrigation system

就在一个重要的灌溉系统的北边，这些河流交汇在一起。

Terms: by irrevocable letter of credit opened by a1 bank in our favor.

付款条件：以本公司为受益人的一流银行开出的不可撤销信用证。

We'd like you to pay us by confirmed, irrevocable letter of credit as usual.

我们希望你们照常采用保兑的、不可撤销的信用证。

Terms of payment: irrevocable letter of credit to be drawn at sight.

该装运的付款方式：不可撤销即期信用证。