reserve unit meaning in Chinese

预备役部队

Reserve units of the 359th brigade stole through the dark mountains .
三五九旅的后援部队悄悄翻过了一片朦胧的山岭。
The school also has 3 reserves units : although the royal navy reserves university division , the military officer trained the group and the air squadron , the school does not request the student to have to participate in these units the training , but still had many students to participate enthusiastically , understood possibly met the question and the solution method in the defense , widened the field of vision greatly
学校还有3个后备役单位：皇家海军后备役大学分队、军官培训团和空军中队，学校虽不要求学生必须参加这些单位的训练，但仍有许多学生踊跃参加，以了解在防卫中可能遇到的问题和解决的方法，大大开阔了视野。