What techniques does Yinshan Z West Hall of Poetry Appreciation use to portray the image of the frontier fortress?

The wind at Yinshan Qikou is like an arrow, and the moon in the west of Iron Gate is like practice.

Both of them shed tears on their horse hair, and the rustling sand burst into their faces.

The husband is not rich in his thirties, but An Neng keeps a pen and inkstone all day long.

1 The image of the frontier fortress: Mainly using rendering techniques to describe the openness and bitter cold environmental characteristics of the frontier fortress desert from multiple angles. First, two metaphors are used, the wind is like an arrow, and the moon is like a train, moving and still, the image represents the bitter cold and deserted frontier; then from the two perspectives of human and horse, write about the reason of the horse

The wind is like an "arrow" , Blowing tears of sorrow, people are blown by the strong wind, and the sand splashes on their cheeks, further exaggerating the unique environmental scene of the desert at night.

The first four sentences select the unique images of the frontier fortress and render the image of the frontier fortress from multiple angles

2 The image of the frontier fortress generals: mainly use the method of contrasting and setting off, using the bitter cold and desolation of the frontier fortress to set off the frontier fortress generals, who are not afraid of the severe cold and write to serve in the army. , the heroic ambition to guard the frontier and make achievements