从国内研究的角度来看，主要集中在空巢老人的生活质量、心理健康、社会支持结构、精神慰藉等方面。
From the perspective of domestic research, mainly concentrated in the empty nest elderly quality of life, mental health, social support structure, spiritual comfort, etc.
对于知识产权产品的平行进口问题研究，国内外学者主要集中在商标和专利产品领域，对著作权产品的平行进口问题讨论较少，在我国相关立法上亦是空白。
To study on parallel import of intellectual property goods, most of scholars focus on the domains of trade marks and patents, but few on copyright, and our legislation are blank.
目前国内学校效率的研究重点主要集中在增值性评价和前沿效率分析两个方向。
At present, the researches on school efficiency mainly focus on the value-added assessment and frontier efficiency analysis.
目前，国内文献对企业培训需求分析的研究主要集中在宏观理论上，而忽视了对实际操作工具和模型的研究。
According to the literature, domestic study of TNA presently focuses on macro theories, which turns out a vacancy in study of operational tools and models.
目前国内外学者对于声诗的研究主要集中在唐代，并认为至五代时声诗逐渐衰落，为长短句所取代。
Up to now , the study on Shengshi mainly focuses on Tang Dynasty , and scholars think that Shengshi declined gradually and was replaced by Ci in the Five Dynasties.
国内外的语言世界图景研究主要集中在文化学领域，而莫斯科语义学派提出的语言世界图景观则与此不同。
The studies on LPW at home and abroad mainly in the field of culture, however, views of Moscow Semantic School on LPW are different.
但国内外对偏心支撑钢框架的研究主要是集中在单根耗能梁段，而对于框架整体的研究很少。
The domestic and foreign study on the Eccentrically Braced Frames mainly focused on a single link, but seldom regarded the over-all behavior of the frame.
国内外关于注水对地层渗透率影响的研究主要集中在应力变化上，对注水温度效应的研究非常少。
There is more attention on pressure change of water injection to the permeability of layer at home and abroad, but a little research on the temperature influence.
国内外对无线传感器网络的研究主要集中在MAC算法、路由算法、定位算法机数据融合算法上。
Currently, the research on wireless sensor network concentrates primarily in the protocol of MAC, routing algorithms and integration algorithms.
国内的去混响研究主要集中在海洋混响的声纳应用方面，而且大部份是针对短时脉冲或单频信号情况下的混响消除；
The research on dereverberation in China mainly focuses on ocean reverberation, where the sources used are often short time impulses or single tones.
目前，国内外对水利工程中无压流到有压流过渡段水流的研究主要集中在泵站前池的流场问题。
Present research on transition section from non-pressure flow to pressure flow focuses on the water of Pumping Station forebay.
目前国内外对电池充电的研究主要集中在充电方法上，对均衡充电也有一定的研究，但控制方法都较复杂，难以实现。
At present the research on battery charging focuses mainly on charging methods internally and abroad, but rarely on equilibrium charging.
根据国内外现有的研究结果，防海洛因复吸药物的研究主要集中在两个方面。
Based on the current available results obtained from national and international studies, the research field in protective drugs of heroin relapse is mainly concentrated in two aspects.
目前国内外对供应链的研究主要集中在如何提高供应链的有效运行上。
At present, the study of the supply chain focuses on how to improve the efficiency of the supply chain.
国内外对流动性的研究主要集中在流动性过剩的内涵、影响因素等方面，较少涉及测度方法。
The study of domestic and abroad about liquidity mainly focuses on the connotation and influence factors of excess liquidity, etc., with little measurement.
但国内的理论研究主要集中在强制性信息披露，而对自愿性信息披露的研究很少。
However, the domestic theoretical research focused on mandatory information disclosure, and the voluntary disclosure of information is not enough.
国外的对它的研究主要集中在它的高度耐涝性，而在国内的分布显示它对干旱、盐、低温与高温生境有很强的适应能力。
Current researches about it are mainly focused on its flooding tolerance, and its habitats in China implies that it is vet adaptive to drought, salt, both low and high temperature.
目前，国内对硅微陀螺仪的研究主要集中在提高精度和稳定性。
Presently, researches on silicon micromachined gyros focus on how to enhance the accuracy and stability mainly.
国内对跨文化交际的研究主要集中在纯语言、交际技巧和表层文化等方面的探讨。
Research in intercultural communication now mainly focuses on analyzing and teaching of fragmentary cultural knowledge and superficial communication skills.
目前，国内外有关股指期货的研究主要集中在定价、价格发现、投机套利、套期保值等方面。
Currently, the research in stock index futures mainly focused on pricing, price discovery, arbitrage, hedging and so on.
国内目前对电视谈话节目的研究主要集中在实践经验总结、社会文化批判等领域，运用叙事学理论对电视谈话节目进行深层次的研究还不多见。
At present the research on TV talk show at home mainly focusing on practice experience reviews, society culture criticism, deep lever research using narratology theory is rare.
目前国内外对金融合作的研究主要集中在四个方面。
Recent researches, at home and abroad, on financial cooperation cover four respects.
目前国内外对咪 鲜 胺的研究主要集中在杀菌效果和杀菌机理上，而在水稻田中的行为与效应研究却 鲜见报道，相关的研究亟待加强。
Previous studies focused mainly on efficacy, toxicity, and fungicidal mechanism of prochloraz, little information was available about its behavior and ecological effect in paddy field.
大学校长是一种角色，国内外关于大学校长角色的研究主要集中在大学校长角色的历史演变、角色定位和角色冲突等方面，文章对此作了简要的概括梳理。
University President plays a role. The studies of this subject at hone and abroad mainly focus on its historical evolution, orientation and conflicts. The paper is a summary of the study.
目前，国内外对启动压力梯度的研究主要集中在油水两相中，对于油气两相启动压力梯度研究很少。
At present, the studies of starting pressure gradient in home and abroad are main focus on single phase and water-oil two-phase and there are a few studies of gas-oil two-phase.
现阶段国内外利用微型动物进行污泥减量的研究主要集中在寡毛类蠕虫如仙女虫、红斑顠体虫、颤 蚓等体型较大的后生动物。
Domestic sludge reduction research using micro-stage animals are mainly focused on oligochaetes worms, such as Naididae, Aeolosma hemprichii, Tubificidae and other large size metazoanes.
现阶段国内外利用微型动物进行污泥减量的研究主要集中在寡毛类蠕虫如仙女虫、红斑顠体虫、颤 蚓等体型较大的后生动物。
Domestic sludge reduction research using micro-stage animals are mainly focused on oligochaetes worms, such as Naididae, Aeolosma hemprichii, Tubificidae and other large size metazoanes.
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