its necessary to hold water supply timely to guarantee drinking safety by strengthening the monitor of water supply.
因此,加强集中式供水水质监测,及时掌握水质动态,对于保障饮水安全非常必要。
if the force of surface tension is too weak to hold water in place as heavy drops, the water will continue to be held firmly in place as a thin film when large pores exist.
calm down, my friend. and know that trying to hold water in a tight fist, will always leave you thirsty!
让自己平静下来吧,我的朋友,要知道用握紧的拳头去装水永远都无用,那只会带给你饑渴!
top with two to four inches of protective organic mulch; this will help hold water and suppress weeds.
顶部罩上2到4寸的塑料薄膜,存水且防止杂草丛生。
the south pole「s aitken basin, an eight-mile deep gouge in the lunar crust, ranks as the largest impact crater in the solar system, and could hold water in the form of ice.