noun
or assembling mark
: one of a number of marks placed on the parts of a machine or structure to define the position or order in which the parts are to be assembled
noun
or assembling mark
: one of a number of marks placed on the parts of a machine or structure to define the position or order in which the parts are to be assembled
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012