铁轨

这两条铁轨是平行的。

zhè liǎng tiáo tiě guǐ shì píng xíng de.

These two rails are parallel.

铁路工务段的桥隧维修大修工人们站在高架铁桥顶端，高高抡起沉重的大铁锤，以万钧之力精准砸击加固铁轨轨枕间的紧固螺栓。

tiě lù gōng wù duàn de qiáo suì wéi xiū dà xiū gōng rén men zhàn zài gāo jià tiě qiáo dǐng duān, gāo gāo lūn qǐ chén zhòng de dà tiě chuí, yǐ wàn jūn zhī lì jīng zhǔn zá jī jiā gù tiě guǐ guǐ zhěn jiān de jǐn gù luó shuān.

Workers in the bridge and tunnel maintenance and overhaul section of the railway engineering section stood at the top of the viaduct, swinging heavy hammers high into the sky, and used extremely powerful force to accurately hit the fastening bolts between the railway sleepers.