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- In the paper, we propose several different harvesting patterns, introduce price and cost factor and employ qualitative analysis method to the Lotka-Voterra prey-predator system with density constraint and without density constraint. 本文对无密度制约和有密度制约的Lotka-Volterra捕食者-食饵系统，提出了几种不同的捕获模式，引入了价格成本因素，运用定性分析的方法，考虑了以最大纯收益为管理目标的最优捕获策略，以期使其对现实有更强的指导意义。
- After harvest we will have a mass of rice. 秋收后，我们将获得大量稻谷。
- The research yielded a rich harvest. 该项研究有了丰硕的成果。
- The bad harvest led to severe food shortage. 歉收引起食物严重短缺。
- This cloth has a pattern of blue and white squares. 这种布有蓝白格子的图案。
- We have a plenteous harvest this year. 我们今年取得了大丰收。
- The harvest has been safely gathered in. 庄稼已妥善收获完毕。
- The economy should be shaped to a new pattern. 经济应该适合于一种新的模式。
- The peasants are harvesting rice in the field. 农民们正在田野里收割稻子。
- Farmers are very busy during (the) harvest. 在收获季节里农民非常忙碌。
- Excessive rainfall had made the harvest impossible. 雨量过多，丰收已经不可能了。
- He roughed in the curves he intended his pattern to take. 他粗略地勾出了他设想中图案的曲线。
- The autumn harvest is about to start. 秋收即将开始。
- The curtains had an elaborate pattern of flowers. 窗帘上绘有精美的花卉图案。
- We are all very busy because it's the harvest time. 因为现在是收获期，所以我们都非常忙。
- We have had three successive years of good harvest. 我们已连续三年丰收。
- It happened that the harvest was bad in 1988. 碰巧一九八八年的收成很糟。
- This augurs well for the harvest. 这是丰收的好兆头。
- An open, crisscross pattern or weave. 格子细工开放式交叉结构或编织法
- The farmer hired extra workers for the harvest. 农人为收割额外雇了工人。
