Influences of oxygen purity on economical aspects of air separation process

Hot-dip is an effective and economical method of steel protection.

热浸镀锌是钢铁防护的一种主要方法。

The Population's Cultural Quality and the Economical Development of Huzhou

人口的文化素质与湖州经济的发展

The Applied Research on the Economical Operation of Transformers in the Area Power Network

地区电网变压器经济运行工程化研究

The Level of Urbanization and Economical Development Of Shandong Province

浅议山东省城市化水平与经济发展

Technical Innovation and Economical Development of Less Developed Regions

技术创新与欠发达地区经济发展

Rational Thinking on the Popular Economical Reports of West Development of China

西部大开发经济报道热中的理性思考

Study on Constructing the Economical Society of Contemporary China

论当代中国节约型社会的构建

Economical dispatch of network power system within many regions based on GA

基于GA的多区域互联电力系统的经济调度

Economical analysis of the high-precision hard-drawn tube

高精度冷拔钢管的效益性分析

The Economical Analysis of Today's Financial Management Goal

当今财务管理目标的经济学分析

A method for effective and economical operation of water treatment system

给水处理系统高效经济运行研究之一&策略与模式

But in recent year, along with the continuous deepening of petroleum enterprise reformation, the benefit is thought much of by oil field. And also the economical of acidification and fracturing attract more attention.

但近年来，随着石油企业改革的不断深入，油田开发企业更加重视经济效益，因此对酸化、压裂措施的经济性也越来越关注。

This instrument is compact in construction, convenient to use, easy to disassemble and install, economical of energy, lower cost and good result of braking.

本装置具有结构紧凑，拆装使用方便、节约能源、成本低、制动效果好等优点。

The proposed method does not involve power interruption and is economical of transformation time and expenses.

应用该方法不需要停电施工，改造时间短，改造费用低。

Before eating breakfast, I read the newspaper.

吃早餐前我看报纸。

Before eating and after using the toilet

餐前便后

Eating rice dumplings is best not to cold, heat thoroughly before eating.

粽子最好不要凉着吃，吃前要彻底加热。

How long should I wait before eating solids?

我要等多久才能吃固体食物？

Maintain good personal hygiene, wash hands properly before eating and food handling.

维持好个人的卫生保健，吃食物之前要洗干净或做好适当的处理。

Plus people often boil the clay before eating.

再加上有食土癖的人通常会把泥土煮熟再食用。