The frongt of the sample with the common styreneacrylates emulsion as sealer , is completely damaged after 20 days immersed in alkali water .
用普通苯丙乳液封底的试块,在碱水中浸20天正面全部泛碱。
The work space consists of a long , foldout table containing a pile of lustrous , green vegetation , a pocket-calculator-size electronic scale , a stack of reflective , hot-pink mylar foil packets , and a heat sealer .