1) Hearing-loss
听力衰退
2) His hearing has started to go.
他的听力开始衰退
3) hearing loss
听力减退
1.
Method: 199 patients reporting tinnitus as their primary compliant orsecondary to hearing loss were sampled as study participants.
第二部分江苏省成年人听力减退的伤残调整生命年研究 目的：使用伤残调整生命年来评价江苏省成年人听力减退的疾病负担，为政府未来的卫生事业的决策提供科学依据。
4) Hearing impairment
听力减退
1.
Methods: 6854 persons aged 10 years and over were selected, as a part of a broad study of hearing impairment and ear disease, by the methods of probability proportional to size (PPS).
方法：采用按容量比例概率抽样方法，在江苏省常住人口中抽样，凡在被调查户居住6个月以上者，不分性别年龄均列入WHO耳疾与听力减退调查。
5) soil degradation
地力衰退
1.
Soil degradation and sustainable management of Chinese fir plantation.;
杉木人工林地力衰退与可持续经营
2.
The soil degradation of Eucalyptus plantation was evaluated from water status, nutrition status and the integrated effect of plantation on water and fertility.
从桉树人工林的水分、养分状况以及人工林对水肥的综合影响上评述了桉树人工林的地力衰退表现; 进而, 以生物多样性作为关键因素, 分析了桉树人工林地上部分及土壤部分生物多样性的特点, 以及导致人工林生物多样性较低的原因, 从而提出制止桉树人工林地力衰退的 3方面的措施。
3.
The paper analyzed the cause and countermeasure of soil degradation and yield reduction of artificial fir plantation in recent years and its solutions, it was summarized that increasing wood yield need to pay great attention to the quality of artificial fir plantation, and improving soil power must attend to the selection, crop rotation and mixture of tree species and fertilizing of wood land.
分析了最近一段时期里人工杉木林的地力衰退及木材产量下降的原因并探寻解决的办法,得出要想提高木材产量就需要重视林地的质量,而提高地力就必须注意到树种的选择、树种的轮种、树种的混交及向林地施肥等因素。
补充资料：经济衰退
经济衰退
【经济衰退】泛指经济活动全面下降。一般的衡量标准是实际国民生产总值连续两个季度下降。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条