精湛技术用英语可以表示为 "expertise" 或 "mastery."

"Expertise" 是指某一领域的专业知识或技能，指的是在某方面拥有超出一般水平的专业知识和技能。

"Mastery" 则指某一技能的掌握程度，表示对某一技能有精湛的掌握或控制。

举例来说，可以这样使用这两个词：

She has a lot of expertise in marketing and is always able to come up with creative solutions to problems. (她在市场营销方面有很多专业知识，总能想出创意的解决方案。)

He has mastered the art of playing the viopn and is able to perform difficult pieces with ease. (他已经精通了演奏小提琴的艺术，能轻松演奏困难的曲目。)