Nếu ta để thang đo quá cao thì kim chỉ lên một chút , như vậy đọc trị số sẽ không chính xác. Nếu ta để thang đo quá thấp , kim lên quá nhiều, và đọc trị số cũng không chính xác.
If we're going to scale is too high then the needle pointing up a bit, so read the value will not be accurate.If we're going to scale is too low, the needle up too much, and reading values are also not correct.
If we are too high to scale it up a little needle, so reading will be inaccurate values. If we to scale too low, too much metal, and also read incorrect values.
If we take a high level of the ladder, the needle is a bit inaccurate.If we can measure the metal stair too much too much, read the value is not accurate.