It's important just to keep a steady, even pressure, an even hand and a merry temperament.

保持稳定平均的压力，平稳的手以及愉悦的心情。

For example, applying steady soft pressure produces a series of pulses at a different rate than applying more forceful pressure.

例如，施加稳定的软压力会产生一系列脉冲，其速率与施加更大的压力不同。