凹板分组的英文

• concave bottom

• 凹板:    notch board; recess plate; c ...
• 分组:    divide into groups
• 凹板:    notch board; recess plate;concave
• 分组:    1.divide into groups 按能力分组 be grouped according to ability; 分组讨论 discuss in groups; group discussion; 分组学习 study in groups2.grouping; subgroup; block sort; curtate
• 凹板齿:    concave tooth