尚

The total number and incidence of catheter related infections occurring each year is unknown.

导管相关性感染每年的确切数字和发生率尚不知道。

Studies were included in our analyses if they were population-based cohort or postcardiac surgery cohort and investigated the incidence of AF in relation to the body mass index categories.

背景：肥胖与左心房扩大和心室舒张功能障碍有关，后两者均为心房纤颤的危险因素，然而肥胖是否为心房纤颤的危险因素尚不明确。

Although the intermediate ancestry of cliver is unclear, the semantic connection has to do with penetration or incisiveness—that is, cutting through to the heart of the matter, just as a woodcarver cuts through material in order to realize a certain vision.

虽然 cliver 的中介来源尚不清楚，但语义的联系肯定与穿透力或透彻性有关--即穿透事物的本质，就象木工劈开材料以了解其内在材质

Although the intermediate ancestry of cliver is unclear, the semantic connection has to do with penetration or incisiveness—that is, cutting through to the heart of the matter,just as a woodcarver cuts through material in order to realize a certain vision.

切、削。。虽然 cliver 的中介来源尚不清楚，但语义的联系肯定与穿透力或透彻性有关--即穿透事物的本质，就象木工劈开材料以了解其内在材质

They are valuable data for studying Yuan Hao-wen and the creation, spreading and influence of his works. They are not short of opinions that have not be expressed before, so they are of great academic value as terra incognita in Yuan Hao-wen studies.

它们是研究元氏及其作品的创作、流播和影响的宝贵资料，其中不乏发前人之所未见的观点，是元好问研究领域中尚待开垦的荒地，有重要的学术价值。

Before the Northern Song Dynasty,Meishan region was in a natural and incompact social formation.

北宋以前，该地区尚处于一种自然松散的社会形态下，但由于社会政治和自然环境等因素的影响，梅山文化逐渐发展起来并形成了自己的特色。

The mechanism of these changes is incompletely understood.

对这些变化的机制尚不清楚。

Light pollution is a kind of novel, incompletely known environmental pollution at present.

光污染是一类新的、尚不完全被人们所认识的环境污染。

The pathogenesis of pulmonary vascular disease in children with congenital heart disease is incompletely understood.

对于先天性心脏病所引起的小儿肺血管病变的发生机制尚不完全清楚。

It is still inconclusive whether high plasma lipoprotein level is a risk factor for stroke.

血浆脂蛋白a是否是脑卒中的危险因素尚存在争议。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐