遭受尼日利亚境内粮食产量不稳定最为严重的人群是其贫困的邻国们。
The people who have suffered most from Nigeria's unreliable agricultural output are its impoverished neighbors.
针对丙酮产品的质量及产量不稳定的状况，对丙酮精制系统进行技术改造。
Technical renovation of acetone refining system was carried out because of unstable quality and output of acetone production.
我国南方大豆产量不稳，仅从常规气象要素或其他条件阐明造成欠收年的真实原因是困难的。
It is difficult to explain the real reasons about unstable yield of soybean in a lean year in south China but some clues have been indicated in this serial experiments.
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