variable point numbervariable point numeral变: become different; change点数: check the number; count; poi ...点数: check the number (of pieces, etc.); count; points; tally◇点数单 tally sheet; 点数单据 tallying document; 点数员 tally clerk; tally man不变点: invariant point; invariantpoint陡变点: abrupt change point下载手机词典可随时随地查词查翻译