Each hair contains its own growth period, grows after 6-8 years and stops growing for a few months, then sheds off.
每根头发都有它自己的生长周期，生长6-8年后，停止生长几个月，然后脱落。
Using method of integral regression, effect of varying amounts per factor on annual yield and period of positive or negative effect during each growing stage of grasses were given.
用积分回归法分析了牧草生长发育各时段单位因子变化量对年产量的影响程度及正负效应时段。
The effect of Lys restriction followedby a repletion period on the performance of growing pigs was studied during 3feeding phases, each lasting 28 d.
通过3个饲养阶段，每阶段28天，研究赖氨酸前期限制后期足量供给对生长猪性能的影响。
Water requirements were measured by making use of water equilibrium, in the whole growing period and each growing stage to study the relations between millet yield and water requirement.
利用水分平衡法测定谷子全生育期的需水量及各生育阶段的需水量，从而探讨产量与需水量的关系。
The results showed that each model could well forecast heat status in each region during the cotton growing period, and the all of the accuracy rate was above 90%.
各月模型的预测准确率达到90%以上，能较好地预测该区棉花生长季内的热量状况；
The results showed that each model could well forecast heat status in each region during the cotton growing period, and the all of the accuracy rate was above 90%.
各月模型的预测准确率达到90%以上，能较好地预测该区棉花生长季内的热量状况；
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