求翻译：数菌落时，计数笔不要过于倾斜，轻轻点下至有弹跳感，听到“嘟"声即可，如点按过重，易损坏计数笔.。是什么意思？

When the number of colonies, count not too skewed, lightly down to have a sense of bouncing, heard the "beep" sound, such as heavy, damaged count..