短語(yǔ)詞組短語(yǔ)turnover r bed 翻轉(zhuǎn)床automatic alternative support turnover bed 自動(dòng)交替承托側(cè)翻床bed turnover rate 病床周轉(zhuǎn)率bed turnover times 床位周轉(zhuǎn) 返回 turnover bed