(1) 电池(组) (portable apparatus consisting of a cell or cells connected together for sup-plying electricity) [C]：a car/torch～汽车/手电电池;The torch needs a new～.这电筒得换电池了。The～has run down. 这电池没电了。

(2) 炮群 (group of big guns mounted on a warship or in a fort) [C]：shore～ies 海岸炮群;

(3) 炮兵连(army unit consisting of a number of big guns， with men and vehicles) [C]：build/construct a～建设一支炮兵部队;

(4) 一套(器具) (large and often confusing set of similar tools， instruments， etc used together) [C， a～] [N(of)]：a～of lights/cooking pots/instruments 一组灯/一套锅/一套器具;

(5) 一连贯(系列) (large number of things of the same kind with which a person must deal) [C， a～][N(of)]：He faced a～of questions. 他面临着一连串的问题。He faced a～of newspaper cameras/flashbulbs/reporters.他面对着大量的新闻摄影机/闪光灯/记者。B～ies of cameras were set to record the event. 架起了许许多多的照相机来记录这一事件。fire a～of questions at sb 向某人连珠炮似地发问;undergo a～of tests 经过一系列的试验;

(6)饲养笼 (arrangement of small cages in which hens， etc are kept and specially treated to make them grow faster or lay more eggs) [C][作attrib]：～hens/eggs 笼养母鸡/笼养鸡生的蛋;～farm 养鸡场;～farming养鸡业