TXT
묘사:
Optical Instrument Window
MRC:
The length of a straight line which passes through the center of a circular figure or body,and terminates at the circumference.ABMZ
Diameter:
3.998 inches
MRC:
A measurement of the smallest dimension of an item,in distinction from length or width.ABNM
Thickness:
0.295 inches
MRC:
An indication of whether or not a polished periphery is provided.BMSM
Polished Periphery:
Provided
MRC:
The element,compound,or mixture of which an item is fabricated,excluding any surface treatment.MATL
Material:
Glass, optical, jan-g-174, type 517-645, grade b
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Glass, optical, jan-g-174, type 517-645, grade b