Humpgry Davy who developed powerful new electronchemical techniques for breaking down compounds into elements.

问题描述:

Humpgry Davy who developed powerful new electronchemical techniques for breaking down compounds into elements.
在这里,techniques和developed是什么意思?

Humpgry Davy 已成功研发把复合物分解成为元素的机电技术.
developed:研发,硏究发展
techniques:技术