当树木长大枝叶茂盛时,它们可以起到隔声的作用.Trees also serve as sound Barriers when full grown and leafed out.实施减轻环境影响的措施,包括建造隔声屏障和广泛植树.Environmental impact abatement measures including noise barriers and extensive planting.本文介绍一种新型电动机隔声罩.Th...
It has performed reliably when used at very high retentions in full - cell impregnation processes.当用满细胞法使它具有很高的保持量时,它的使用是很可靠的.Structure and performance of aluminum impregnation to steel _ container are studied.研究了渗铝包子桶的组...
官方也开始对水库及其支流的污染表示进一步的担忧.Officials have also started to sound more worried about pollution in the reservoir and its tributaries.两个主要因素导致了夏季长江及其支流的特大洪流.Two major factors contributed to devastating summer along the River an...