使用价值的两重性指的是有用性和稀少性。
The duality of use value refers to its usefulness and rarity.
其稀少性使得对该损伤实施前瞻性随机研究变得非常困难。
Their rarity makes it extremely difficult to study these injuries in a prospective or randomized manner.
所有权的基础是稀少性，所有权的不同制度安排对资源的有效利用有很重要的影响和作用。
Ownership is based on scarcity and the ownership system has a very important effect on the using resources efficiently.
人们对稀少性对象的认识不一致，就会对所有权作出不同的制度安排，从而就会产生不同的资源利用方式。
Different opinions of scarcity cause different arrangement of ownership system, thus bring about different ways of resources using.
治理石油泄漏的研究很少，突破性的进展更是稀少。
Research into dealing with spilled oil is limited, and breakthroughs are scarce.
由于人口稀少，表亲之间通婚在岛上就显得很平常了，而导致遗传性哮喘普遍存在（这还是近亲繁殖出现的副作用中较好的情况）。
Due to the small population, marriage between cousins is fairly common on the island, and this has led to widespread genetic asthma (which is one of the better side effects of rampant inbreeding).
由于季节性旱涝，过度放牧和火灾，这里树木稀少。
Trees are sparse on grasslands due to seasonal floods and droughts, heavy grazing, and fires。
在这个时代，智能手机、Wi - Fi、人造卫星和其他的在线技术，很容易了解离线副本的相关性越来越稀少。
In the age of smart phones, Wi-Fi, satellite and other online technologies, it's easy to understand how the relevancy of an offline copy can get diluted.
由于数量稀少，环境适应性差，目前国内外动物园中还未见饲养展出。
Despite its beautiful plumage, the bird has never been displayed in zoos because of its scarcity and inability to adapt to new environments.
该概念性模型对于流域出口泥沙资料稀少的地区具有很高的应用价值和协助流域管理的潜力。
This conceptual model provides a new option for areas with sparse sediment data series at watershed outlets , and it has a great potential in assisting watershed management.
大九湖湿地是我国较为稀少的亚高山湿地，其泥炭沼泽湿地类型更具有独特性、典型性、代表性。
Dajiuhu wetland is a sparse type of subalpine wetland in our country, especially famous for its peat-swamp wetland which has uniqueness, typicality and representativeness.
周期性的洪水泛滥使人烟稀少。
采用适当的措施把湿地系统结合到景观设计之中，是具有前瞻性和环境意识的举措，能为我们宝贵、稀少的自然资源减少人为的影响。
Proper implementation of wetland systems into landscape design is forward-thinking, environmentally aware, and reduces human impacts on our limited natural resources.
薄弱的假日流动性再次成为上周五外汇市场的“困扰”，使欧元兑美元因为稀少的支持而不断走跌。
Thin, holiday liquidity was once again the plague of the FX markets on Friday, allowing EURUSD to drift lower with very little support forthcoming.
新疆温宿盐丘是我国保存完好，而又稀少的盐丘构造，具有重要的观赏性和极大的科学价值，是进行地质研究的自然博物馆。
Xinjiang is China's Wensu salt dome intact, and the scarcity of salt dome structure, is important to watch and great scientific value is to carry out geological studies of natural museum.
英国休市而美国仍在应对东北部暴风雪的余波，市场流动性因此依然稀少。在这样的环境中，美元走软。
The dollar weakened as market liquidity remains thin with the UK on holiday and the northeast US still struggling with the aftermath of the blizzard.
这里大草原的树木稀少因为季节性洪水和干旱，沉重的放牧还有火灾。
Trees are sparse on grasslands due to seasonal floods and droughts heavy grazing and fires.
该盆地地处我国北温带大陆性干旱-半干旱气候区，总体上降雨稀少、蒸发强烈，生态环境脆弱。
This basin is located in north China continental arid and semi-arid climate zones . Low rainfall and strong evaporation, weak ecological environment in general.
不象SLE病人，系统性硬化病人的慢性炎性细胞稀少。
Chronic inflammatory cells are sparse with systemic sclerosis, unlike SLE.
由于雪崩研究的复杂性，冬天在人烟稀少的地区旅行从来不是百分之百的安全。
Due to the complexity of the subject, winter travelling in the backcountry is never 100% safe.
由于雪崩研究的复杂性，冬天在人烟稀少的地区旅行从来不是百分之百的安全。
Due to the complexity of the subject, winter travelling in the backcountry is never 100% safe.
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