gradation
特殊用法qualitative gradation1.■音质增减(指元音伸缩)sand gradation1.■砂粒级配tonal gradation1.■音调[色调]等级vowel gradation1.■元音递变[交替, 等次]gradation of age classes1.■龄级顺序gradations of colour1.■彩色的不同色调gradation of grey1.■(图象)灰度等级gradations of image1.■图象的灰度等级, 图象的深淡层次gradation of insulation1.■绝缘等级gradation of moisture1.■水分梯度gradation of test1.■(颗粒)级配筛分试验
考试词汇表
