短語(yǔ)詞組短語(yǔ)proper sowing time 適宜播期proper regeneration time 合理更新期proper control time 防治適期proper controlling time 防治適期proper injection time 注入時(shí)機(jī)proper time interval 固有時(shí)距;[物]固有時(shí)間隔;固有時(shí)間隔英語(yǔ)at proper time 在適當(dāng)?shù)臅r(shí)間;在適當(dāng)?shù)臅r(shí)候at a proper time 在適當(dāng)?shù)臅r(shí)候proper time of harvesting 收獲適期 返回 proper time