The results stated that:the cost of cocoon production has showed first increasing then decreasing;
结果表明：近二十年来浙江省蚕茧生产成本呈先增长后下降的趋势；
A trend of total fluorescence intensity first increasing and then decreasing was showed with the time.
总荧光强度随时间呈现先升高后降低的趋势。
With the technological and other key elements remaining the same, their marginal income is increasing first and then decreasing gradually.
在技术水平和其他要素的投入不变的情况下，边际收益是先递增后递减。
The results show that the number of OH radicals decreases rapidly and the number of o atoms follows a rule of increasing firstly and then decreasing from arc root to arc tip.
结果表明：沿等离子体从弧根到弧梢位置，OH自由基数量迅速减少，O原子数量呈现先增多后减少的规律。
The results show that the number of OH radicals decreases rapidly and the number of o atoms follows a rule of increasing firstly and then decreasing from arc root to arc tip.
结果表明：沿等离子体从弧根到弧梢位置，OH自由基数量迅速减少，O原子数量呈现先增多后减少的规律。
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