At certain times the measurement cannot be performed because of various restrictions, such as the dangers of wind waves, Tambon location cannot be accessed or is not appropriate, or any other, is in the discretion of the.
At some time during the measurement can not be performed. Due to various constraints, such as the danger of waves. District location inaccessible Or other inappropriate or in its discretion.
In a certain period can"t carry measure, due to limitations, such as the danger from very slippery wind district place cannot access. Not appropriate or the other at the discretion of the