zhè / pī / gāng / cái / zhèng / zài / jìn / xíng / péng / huà / chǔ / lǐ / yǐ / tí / gāo / biǎo / miàn / yìng / dù这批钢材正在进行硼化处理,以提高表面硬度。This batch of steel is undergoing boriding to improve its surface hardness.