英指触又称触键手指接触琴键的方式特别是在钢琴演奏中指触与奏出的音色音响效果有密切关系
English finger touch, also known as key touch, is the way fingers touch the piano keys. Especially in piano playing, middle finger touch is closely related to the timbre and sound effect produced
以上为机器翻译结果，长、整句建议使用 人工翻译 。