On the base of assuring survival rate and conserving rate, the less the fee used in soil preparation and young growth tending is, the higher the economic benefit is.
在保证造林成活率和保存率的基础上，用于整地和幼林抚育方面的经费越少，经济效益则越高。
It also keeps your body from lowering its metabolic rate and conserving fat.
这也能避免人体降低新陈代谢率和储存脂肪。
Durpose Explore an efficient method to raise the succeeding rate of pulpotomy under the condition of conserving root pulp of deciduous teeth.
目的寻求一种能够有效地保存乳牙生活根髓，提高活髓切断术成功率的方法。
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