Delta offset is an acceptance of maximum positive deviation from the offset value 三角垂距是最大正面偏差取从垂距的值。
2.
When the calculated offset from recorded chirp is higher from the sum of offset and delta offset then such record is repeated 当计算后的记录的短促声波的垂距比垂距和三角垂距的总和要高的时候，这样的纪录将被重置。
