Sutter R P
Appl Microbiol. 1969 Sep;18(3):525. doi: 10.1128/am.18.3.525-525.1969.
Culture flasks capped with stainless-steel closures became contaminated when incubated in circulating air. Cotton plugs prevented this contamination.
用不锈钢瓶盖封口的培养瓶在循环空气中孵育时会被污染。棉塞可防止这种污染。