正规兵团 meaning in English

regular forces

In a guerrilla zone or guerrilla base area with many guerrilla units , there are usually one or more guerrilla formations ( sometimes together with regular formations ) which constitute the main force , a number of other guerrilla units , big and small , which represent the supplementary force , and many armed units composed of people not withdrawn from production ; the enemy forces there usually form a unified complex to concert their operations against the guerrillas
在一个游击区或游击根据地里面，那里存在着多数的游击队，其中往往有一个至数个作为主力的游击兵团（有时还有正规兵团）和许多作为辅助力量的大小游击部队，还有不脱离生产的广大的人民武装，那里的敌人也往往成为一个局面，统一地对付游击战争。