single sampling单: singular number fate; destin ...次: order; sequence抽样: sample; sampling; specimen; ...单次抽样计划: sampling plan, single; single sampling plan多次抽样: multiple sampling inspection; multiple-scale下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:单次抽样，即可在微信中查询翻译
