“增加量”的英语？

能够测试出亚纳米级生物膜厚度的增加量.Thickness increase of bio - layer of angstrom level can be detected.每次复制元素时,实常数表号的增加量.Increment real constant table number by RINC.每次复制元素时,单元坐标号的增加量.Increment element coordinate system number by CINC....