7. 51 female guards of honor have average height of 1.78 meters
51名儀仗隊(duì)女兵平均身高1米78

It is the first time female guards of honor will join a parade. The total number of 51 female guards of honor have an average height of 1.78 meters and age of 20.88% of participants hold a bachelor degree or higher.
本次閱兵，儀仗隊(duì)中將首次出現(xiàn)女性面孔。51名儀仗女兵的平均身高達(dá)1米78，平均年齡為20歲。其中，88%的士兵擁有本科及以上學(xué)歷。

They ask for extra training hours to practice since it's very difficult to keep the exact same movement and pace with male members in a unit due to females' smaller body size.
女兵們身體瘦小，一開始無法跟上男隊(duì)員的步伐節(jié)奏，因此她們要求接受額外訓(xùn)練。