| 释义 |
headblock
\ˈ ̷ ̷ˌ ̷ ̷\ noun
: a block supporting the head of something: as
a. : a part of a sawmill carriage that supports the log
b. : a block of wood between the fifth wheel and the forward spring of a carriage or wagon
c. : one of a set of extra-long railroad ties used for supporting the operating mechanism of a point rail |