The most effective way is lower frequency tapping, as other ways may cause production decrease or need high cost or be re strained by environment or require great Labour intensity.

因为其它方法存在较大缺陷，有的造成减产，有的成本高，有的受环境制约，有的劳动强度太大等。

youdao

So you're tapping your foot. You're tapping the beat and a lot of the music is coming off the beat.

你用脚打拍子,你在跟着节奏打拍子,很多乐音都不在正拍上

耶鲁公开课 - 聆听音乐课程节选

This is something that mothers across the country are alarmed about and we're tapping into that.

WHITEHOUSE: The White House

Out to the movies, at Grandma's for Thanksgiving, they're tapping away at their little hand-held currency reader gadget just checking the situation for the Japanese yen or Zimbabwean dollar.

NPR: Currency Traders Spy Opportunity In Crazy Times

They're not so much tapping the wire and writing things down as taking millions and millions of records of people who have talked on telephone, up to a trillion, I am told.

NPR: Week in Review: NSA Surveillance, Hayden, Tax Cuts