2 sentences

1. 由于使用时间过长，铅字的字面已经磨损了。

   yóu​yú shǐ​yòng shí​jiān guò cháng, qiān​zì de zì​miàn yǐ​jīng mó​sǔn le.

   The face of the lead type has worn down due to long-term use.

   Source: Dong Chinese Dictionary

2. 这个铅字的宽度正好是一个全身，符合当时的排版标准。

   zhè​ge qiān​zì de kuān​dù zhèng​hǎo shì yī gè quán​shēn, fú​hé dāng​shí de pái​bǎn biāo​zhǔn.

   The width of this lead type is exactly one em, which met the typesetting standards of the time.

   Source: Dong Chinese Dictionary