难点

Some of our conclusions obtained are summarized in this paper.

这一问题的核心和难点是轨道的稳定性问题。

The difficulties of active olfaction are pointed, out at the end.

最后，指出了当前主动嗅觉研究的主要难点。

But the questions on how to impulse the development of this industry and what role should the government play during the development have always been the focus and difficulty among the economic and administrative study fields.

而如何推动本产业发展，进而政府应该以什么样的角色参与本产业发展，一直以来都是经济、管理学界研究的热点和难点。

Nowadays, electronic rccords managcment is onc of the most difficult part in archivaI science.

中文摘要：电子文件的管理是当前档案学学科研究的重点和难点。

The oocyte is one of the biggest and also the most difficult freezing cell type in the mammalian animal body.

卵母细胞是哺乳动物体内最大也是最难以冻存的一种细胞，其冷冻保存一直是生殖医学领域内研究的难点和热点。

Finally, some open problems are pointed out.

最后，探讨了该领域的一些热点和难点问题。

One, the issue that makes an example break through difficulty to hit an example to be able to make complex issue simplification, abstruse opportunely is easy to read and understand change, abstract problem visualize.

一、巧打比方突破难点打比方可以使复杂的新问题简单化、深奥的新问题浅显化、抽象的新问题形象化。

Use synthetic aggregate production, due to choose the bone China several years ago I won the prize in the science and technology achievements in strengthening the study of technical thought porcelain, thus make the ossein porcelain mechanical strength greatly improved, overcoming the ossein porcelain is damaged, make the products more competitive in the market.

利用合成骨料生产的骨质瓷，由于选择了我所前几年获科技进步奖的成果《强化瓷的研究》技术思路，从而使骨质瓷的机械强度大为提高，克服了骨质瓷易破损这一难点，使产品在市场更有竞争力。

But how to make then play ossification with stability and high-performance is the hot and difficult spot.

骨形态发生蛋白成骨作用早已被证实，但是如何使其稳定高效的发挥成骨作用是研究的热点也是难点。

The diagnosis of occult fracture, which is always be maldiagnosed, even leads to unnecessary medical dispute, is one of difficulties in clinical osteological surgery.

隐匿性骨折的诊断是当前临床骨外科诊疗过程中的难点之一，很容易造成漏诊、误诊，引起一些不必要的医疗纠纷。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。