... 季节性乏情 seasonal anestrus 季节性繁殖 seasonal breeding 季节性工业 seasonal industry ...
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AIM: To study the seasonal variations of mite specific antibodies in serum from asthma patients and breeding densities in their bedrooms.
目的：探讨哮喘患者血清免疫学指标及患者室内尘螨孳生密度的季节变化规律。
Under new feeding method of Apis cerana cerana seasonal management, the skill of breeding right age overwintering bee flock and the cutting off offspring by imprisonment should be undertaken.
在新法饲养中蜂季节性管理中，必须采取培育适龄越冬蜂并适时幽王断于的技术措施。
The distribution, breeding habits and seasonal fluctuation of the various mosquito larvae were studied at eight breeding places in the Mountain Resort from 1985 to 1995.
1985年和1995年先后在承德避暑山庄内选择8个具有代表性的蚊幼虫孳生地进行了蚊种类的分布及季节消长的研究。
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