在困难中

It is difficult to select from his voluminous works short passages that are really representative.

在他的卷帙浩瀚的著作中，要选出真正有代表性的片段相当困难。

The ever-growing restriction to the availability of fetal brain tissue together with some ethic problems has largely hindered the practicability of wide-spreading clinical application of such therapeutic activities.

但健康胎脑来源的日益困难，加之某些伦理学方面的问题大大阻碍了这种疗法在临床实践中的大规模普及。

This leads the key ratio of the Winnow algorithm is very low, consequently, the 'Winnow algorithm can not be employed in application.

然而，在Winnow算法中，区间长度的选择是非常困难的，同时也是非常重要的。

In a society that puts money above all else, such spirit is rare and commendable and is indeed a wonder-working magic that can conquer all difficulties.

在当今一切向"钱"看的社会氛围中，这种精神不仅难能可贵，而且是战胜一切困难的法宝。

WSJ: What's the most difficult part of working in this business?

华尔街日报》：在这项业务中最困难的部分是什么？

In China, the dispute of civil jurisdiction is resolved by the administerial method,which brings on the nonentity of parties' right on the objection of civil jurisdiction, the extension of the main body who can object the civil jurisdiction is too limited,and the difficulty of the objection of level jurisdiction.

在我国民事诉讼立法和实践中，对管辖权异议的解决奉行的是行政化处理的模式，因此导致当事人管辖权异议权利虚无、管辖权异议主体范围过于狭窄和级别管辖异议困难等弊端。

Conclusion］the technique of radiographic assessment to define the anteromedial oa of the knee is not easy to perform, but it can be used, by well trained doctors, in the most knee oa cases with high accuracy.

结论］应力位摄片拍摄和读片要求较高，但经过适当训练可以在大多数oa病人中获得很高的诊断率，对于一些困难的病例可以结合mri软骨和韧带成像以帮助诊断。

Conclusion］The technique of radiographic assessment to define the anteromedial OA of the knee is not easy to perform, but it can be used, by well trained doctors, in the most knee OA cases with high accuracy. The MR imaging gives more information about cartilage defects and can be used in some doubted cases.

结论］应力位摄片拍摄和读片要求较高，但经过适当训练可以在大多数OA病人中获得很高的诊断率，对于一些困难的病例可以结合MRI软骨和韧带成像以帮助诊断。

Conclusion］The technique of radiographic assessment to define the anteromedial OA of the knee is not easy to perform, but it can be used, by well trained doctors, in the most knee OA cases with high accuracy. The MR imaging gives more information about cartilage defects and can be used in some doubted cases.

结论］应力位摄片拍摄和读片要求较高，但经过适当训练可以在 OA病人中获得很高的诊断率，对于些困难的病例可以结合MRI软骨和韧带成像以帮助诊断。

The separation of azeotropic mixtures is a common task in the chemical industry.

共沸混合物的分离是化学工业中常见的作业，因其共沸点的存在造成在分离上比一般混合物更加困难。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。