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In order to guarantee safety and stability, and to minimize costs for repair and maintenance, it is desirable to make a suitable rule determining the range of out-of-round, and to detect、remove and repair the non-roundness wheels in time. The paper analyzes wheel ovalization, which is called the second order periodic non-roundness of wheels.

为保证此方面的行车安全和稳定，提高铁路运输维护维修的经济效益，需要制定合理的依据，确定车轮非圆化的允许范围，及时对非圆化车轮进行检测、更换和镟修。

Objective To evaluate the accuracy of mammography,ultrasonography and combination of the two methods in non papable breast lesions;and to assess the clinical usefulness of US guided biopsy for non papable breast lesions.

目的 评价和比较乳腺X线摄影、超声成像以及二者联合在微小乳腺病变中的诊断准确率；探讨超声引导下定位活检对微小乳腺病变的临床应用。

The calls of non-passerine are some kinds of monotonous dull vocalizations with the characteristics of low and deep frequency, single syllable, low basic frequency and with no ability of modulation in frequency and amplitude. Most of the calls are monotonous and low quality mainly based on the basic song. Compare the vocal of sub-oscine passerine with non-passerine, they have some similar aspects, but the former possesses of stronger capability of vocal control.

非鸣禽的叫声低沉而单调，音节种类单一，基本音频率低，缺乏频率调制以及幅度调制的能力，叫声的品质因数很低，不悦耳，大多为以基本音为主的单音调低音品叫声，亚鸣禽的叫声与非鸣禽近似，但在控声能力方面又有所提高。

MAIN OUTCOME MEASURES: The pendular movement route of non-throwing-arm at the stage of final exertion; The correlation between the braking of non-throwing-arm and the trunk at the stage of final exertion.

主要观察指标：①非投掷臂在最后用力中的摆动路线。②最后用力阶段非投掷臂制动和躯干的关系。

Especially, it is found that there exists three types of relative permeability of water such as concave, convex to the water saturation ax and the reversed "S" pattern. The super-low permeability reservoir is sensitive to pressure, apparent with millipore undersaturation and water blocks. In this study, a new concept of irriducible undersaturation is brought up. And a new mode to describle the process of imbibition dynamics is used to reveal and confirm the mechanism of pinhole enveloping macropore as following: pendular ring of wetting phase gathers→it fills throat→it truncates nonwejting phase . The expression of pressure distribution and the equation of oil production are deduced under conditions of non-darcy linear seepage and non-linear seepage.

尤其发现水相相对渗透率曲线存在凹向、凸向含水饱和度轴及反S形三种形式；特低渗透储层的压力敏感性强，微孔隙的欠饱和及水锁效应显著，本文研究中提出欠束缚水饱和度的概念，引用一种描述渗吸动态即湿相液环聚集→充填喉道→截断非湿相的演化过程的新方法，更深刻地揭示和证明了&小孔包围大孔&机理；推导出了非达西线性渗流和非线性渗流条件下的压力分布表达式和油井产量方程。

Although non-formal systems are permeative, protracted in evolution and slow in alteration, human daily-growing ability of rational cognition by means of science and technology makes us completely able to solve the above-mentioned problems by transforming existing non-formal systems in the procedural system of market economy of our country.

非正式制度虽然具有存在的弥散性、演化的长期性、变迁的缓慢性等特点，但人类以科学技术为代表的理性认识能力的日益强大，使得人们可以通过变革非正式制度来解决我国市场经济秩序型构中存在的深层问题。

Although non-formal systems are permeative, protracted in evolution and slow in alteration, human daily-growing ability of rational cognition by means of science and technology makes us completely able to solve the above-mentioned problems by transforming existing non-formal systems in the procedural system of market economy of our country.

非正式制度虽然具有存在的弥散性、演化的长期性、变迁的缓慢性等特点，但人类以科学技术为代表的理性认识能力的日益强大，使得人们可以通过变革非正式制度来解决我国市场经济秩序型构中存在的深层问题。其主要途径有：重视习俗影响；塑造道德理念；建构新型文化。

This is done mainly to assist the user (non-linguist/non-signer ) in understanding the nature and photological parameter in the de******ion of ShSL.

这种做法的主要目的是帮助使用者（非语言学家/非手语使用者）理解对西隆手语的一些描述。

Ash composition and background gain as the non-coated material opacity and polyporous increases, GCR application may not suitable for all non-coated material users.

灰身分替代和底色裨益由于否涂布质料不透明性的贬矮和多孔性的增增，GCR搁置或者并不得当所有的否涂布质料用户。

His use of modern composition techniques in his early piano work is most apparent in his use of non tertian harmony, his non functional chord progressions, his polytonal and mixed modal tonalities, and polyrhythmic.

1934年，俄籍作曲家齐尔品(A 。N 。Tcherepnin ，1899～ 1977)在上海国立音专举办&征求有中国风味钢琴曲&创作评奖，使《牧童短笛》等一批优秀的钢琴音乐作品脱颖而出。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新