| 释义 |
细菌xìjūn微生物的一大类,体积微小,必须用显微镜才能看见。有球形、杆形、螺旋形、弧形、线形等多种,一般都用分裂繁殖。自然界中分布很广,对自然界物质循环起着重大作用。有的细菌对人类有利;有的细菌能使人类、牲畜等发生疾病。{germ; bacterium; any fissiparous micro-organism of the class Schizomycetes, which is so tiny as to be visible only under a microscope, round, bacilliform, spiral, arcing and filamentous in shape, and widespread in nature, playing a major role in the material circulation in nature. Some germs are salubrious to humankind, and some are pathogenic and cause diseases in humans or animals.} |