英和和英

focal point

the focus of a lens

the cardinal points of the compass

an observation-post

of a lens, the focal length

focal length

7 point

an angle of incidence

the angle of fire

the flashing-point

a document in which a donation to a temple or shrine is recorded

shooting-grounds

a halter

of a lens, the depth of focus

the middle piece

perspective

the principal axis

a captive balloon

a buoy

the angle of incidence

a line-up in which a witness looks at and identifies a suspect

orientation packet

a mooring buoy

a letter-file

contour ploughing

an interrogation point

palatal index

the main line

contrapuntal base

a dotted line