Each set of the anvils for the jointed inside micrometers is adjusted to suit the particular micrometer. Each is given a mark and must not be used on any other micrometer. When assembling, clean the joining faces perfectly. Graduated in 0.01 mm increments. 

 调整连接内径千分尺的每组砧座，以适合特定千分尺。每个测微计都有一个标记，不得用于任何其他测微计。组装时，彻底清洁接合面。以0.01毫米的增量进行刻度。