虽然提高砍伐树木转化为木材产品的效率可能会降低收获率，但它将通过增加供应和降低价格来刺激需求，从而促进消费。
Although improved efficiency in converting harvested trees into wood products may reduce harvest rates, it will stimulate demand by increasing supply and lowering prices, thereby boosting consumption.
观察胰岛收获率和体外胰岛素分泌情况。
The islet recovery and insulin secretion were observed in vitro.
当该系统具有收获率时，证明了该系统若存在正平衡点，则它是全局不稳定性。
When this system has harvesting rate, we have also proved that if there is a positive equilibrium point in the system, it is then globally unstable.
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