手边的材料依然存在严重缺漏。There are still major lacunae in the material available.这名单有若干缺漏.This list of names has a few omissions.对比这些版本,每个版本都有缺漏的台词, 甚至整幕戏.Each has lines, and even scenes, that are missing from the others....
它对氟离子的选择性比其它普通阴离子高几千倍.It'shows a thousandfold selectivity for fluoride over other common anions.比色法涉及氟离子对预先形成的颜色的消色作用.The colorimetric methods involve the bleaching of a preformed color by the fluoride ion.阐述用氟离子选择电...