英文關鍵字
apparatus
background
builder
builders
building
car
caucasian
construction
development
device
elevation
engineer
equipment
exact
geodesic
geodesist
geodesy
geodetic
industry
inspection
inspector
instrument
land
location
male
measure
measurement
men
occupation
optical
outdoor
person
preparing
professional
quality
safety
scale
survey
surveying
surveyor
team
technology
tool
trunk
two
worker
workers
workplace