Through the separation, lignosulfonate with narrow molecular weight distribution was obtained and then chemically modified.木质素磺酸盐是一种常见的普通减水剂, 其分子量分布较宽,从而影响减水剂性能.The graft mechanism of lignosulfonate and acrylic acid was ...
to unmask a spy揭发间谍We shall unmask that cowardly cheat.我们要拆穿那个卑劣骗子的假面具.Surely you can easily unmask Chou Erh - chieh and let them see her for what she is?难道你们不好在工人面前剥下周二姐的面皮让大家认识个明白么?...