Developing an economic and valid pressurized and enhanced casing repair Technology for multiply casing damages with long damaged segment becomes the earnest issue in well repair area.

研究经济有效的多点套损井长井段密封加固修复技术就成为目前修井领域亟待解决的课题。

youdao

I want to try my ability in the economic developing area.

想在经济开发区试试自己的能力。

youdao

This article describes the process of developing and validating an economic skill building intervention for women of an urban slum area of Karachi, Pakistan.

本文介绍了开发和验证的经济能力为一卡拉奇，巴基斯坦城市贫民窟地区的妇女建立干预过程。

youdao