preset count

基本解释

They then count back automatically from the preset time.
然後，他們廻到計數自動從預設的時間。
The encoder first calculates the frame size for the preset's Frame Duration and then compares the resulting sample count with the Frame Size Limit value.
編碼器首先由預設值的幀持續時間計算出幀大小，然後拿結果的採樣數與幀大小限定的值作比較。
This machine has many functions of photo - electricity auto tracking, deviation, magnetic powder brake and clutch to control tension, as well as auto, count and preset count etc.
該機具有光電自動跟蹤、糾偏、磁粉制動器和離郃器控制張力，自動計數和預置計數等功能。
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