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- at weaning time 在动物断奶期
- There were no significant differences in stillbirth, litter size at weaning and early growth of piglets. 对产死胎数、断奶头数以及仔猪早期生长性状影响不显著。
- At weaning, backfat thickness was 1.5 mm less in sows fed the high-fiber diet during gestation than in control sows (P = 0.006; Table 3). 在断奶，背膘厚为1.;5毫米的母猪喂食时妊娠比对照高纤维饮食减少母猪性（P=0
- At that time he had two helpers. 当时他有两个助手。
- I'm sorry to obtrude on you at such a time. 我很抱歉在这个时候打扰你。
- The significant differences (P<0.05) were showed on litter size, litter size at weaning, weaning weight and litter weight at weaning of different genotypic mating combinations. 公、母猪不同基因型交配组合在产仔数、断奶仔猪数、仔猪断奶体重和断奶窝重等性状上亦有显著差异(P<0.;05)。
- He used to abandon his work for months at a time. 他过去每次放下工作就是几个月。
- An active volcano may explode at any time. 活火山随时都有可能爆发。
- A sire and dam model and a sire and maternal grandsire model are fitted for weight at birth and weight at weaning of sheep to estimate the direct genetic and maternal additive genetic variances. 本文利用公畜母畜模型和公畜外祖父模型估计了初生重、断奶重的直接加性遗传方差、母本遗传方差和遗传参数;得出初生重的直接加性遗传效应、母本遗传效应和总的加性遗传效应的遗传力分别为:0.;164、0
- It's very discouraging to be sneered at all time. 总是受到讥笑使人非常气馁。
- There are significant differences (P<0.05) on litter size, litter weight at birth, litter weight at 20 days, litter size at weaning and litter weight at weaning of different genotypic sows. 在3种基因型中，不同基因型母猪的繁殖性能在产仔数、仔猪初生窝重、20日龄窝重、断奶仔猪数和断奶窝重等性状上存在着显著差异(P<0.;05)；
- I had a most unpleasant time at the dentist's. 我在牙医那里受了大罪。
- I have no time at all to write to you. 我根本没时间给你写信。
- It is really a bitter pill to swallow at that time. 在当时，那真是一件不得不忍受的苦事。
- It's so changeable at this time of year. 这段时间天气变化无常。
- I was in on what you were doing at that time. 我已知道你那时所干的事。
- I was taking a bath at this time last night. 昨天晚上这个时候我在洗澡。
- He arrived at the meeting place beforehand. 他提前到达会面地点。
- It is necessary that he be sent there at once. 有必要马上派他到那里去。
- She is always so surly; she never smiles at anyone. 她总是那麽个坏脾气，对谁也没有一个笑脸。
