"The iron has not yet been removed from the broken halberd and sunken sands, since I will [jiāng]? I will [jiāng] recognize the previous dynasty [cháo]."

These two lines mean that the broken halberd sank in the mud and sand and was not eroded, and one recognized it as a relic of the previous dynasty after scrubbing it.

Chao

[zhāo] 1. morning: ~ yang. ~ sunshine. ~ twilight. ~ haze. ~ qi. ~think twilight. ～I'm not going to change my mind. ~Qin Mu Chu.

[cháo] 1. toward, against: ~ to. ~ front. ～To the south. To sit in the north, to sit in the south.

will

[jiāng] 1. to be soon: ~ to. ~ to. ~ to. That is, ~.

[jiàng] 1. a level of military rank, above the school, referring generally to senior officers: ~ collar.