You are on reference line of fairway.
You are approaching reference line of fairway.
Your position distance 400metres from intersection of reference line.
It can maintain a fluid interface at a reference line in an inclined glass tube.
At marking for boring apply scriber to mark out reference line and boring line. strike quincunx punch marks at the center and surroundings of bolt hole.
Store the offset from the reference line of the wall over which the door will be placed.
A single mode fiber (SMF) pigtailed laser diode alignment system provides a laser reference line with fine stability for measurement.
The principle of the reference line design is based on the precise guide rail. The laser beams of the couple lasers should be aligned.
If there is any mistake in the position, dimension of height mark or reference line of the construction, the contractor shall amended it during construction.
Direction, especially angular direction measured from one position to another using geographical or celestial reference lines.
