according to an exact understanding of rules, facts, etc.

Technically, the country's economic problems are over, but recovery will be slow. 理论上，这个国家的经济问题已经过去了，但恢复将会很慢的。

young people who are technically still children 实际上仍然是孩子的年青人

in a way that relates to the knowledge, machines, or methods used in science and industry

technically advanced weapons 技术先进的武器

in a way that relates to practical skills and methods that are used in a particular activity

It was a technically brilliant performance. 从技艺的角度来看，这真是一场精湛的表演。