In vertical direction, the existence of isolated barrierbed may result in the formation of multiple vertical sequence units, and the development of interlayer oxidation zone and uranium roll.
在垂向上，隔挡层的存在可以导致多个垂向序列单元、层间氧化带和铀矿卷头的发育。
2
Even if a mosquito somehow managed to penetrate such a barrier, a second light curtain set up around a bed, for example, would provide further protection.
即使蚊子能穿过一道此类屏障，第二道光幕，比如说设立在床周围，会提供进一步的保护。
3
The only barrier was a mosquito net, enveloping the entire bed.