反转

Short TR, short TE spin echo or short TI, short TE composite inversion recovery (IR spin echo images are used to demonstrate the high signal that develops at some time after the ictus, as early as 10 hours but typically 2-3 days, and persists for a variable length of time, from a few weeks to a few months.

短TR，短TE回波脉冲(或短TI，短TE 整合反转恢复回波脉冲)影像主要用于显示高信号，这种信号常是病变爆发后产生，最早10小时，但典型是2-3天。并且高信号可持续几周甚至几个月。

In it, there may exist many incompletely reversed normal faults and the corresponding rolling anticlines.

在这一层可能还存在很多没有完全反转的正断层及其相应的滚动背斜。

Jurassic Tectonic Revolution in China and New Interpretation of the Yanshan Movement;2. The Indo-Chinese movement and Yanshan movement were two important tectonic movements in the Mesozoic era.

中生代印支运动和燕山运动是对济阳坳陷有重大改造的2次构造运动，印支期主要发育NW向逆推断层，燕山早期则为逆断层向正断层的过渡阶段，燕山中、晚期NW向断层发生构造反转，由逆断层转换为正断层。

Lyman-# radiation pressure can reverse the infall in the polar regions when the protostar grows to 20 30M, but cannot significantly reduce the accretion rate.

当星坯的质量增长至20-30太阳质量的时候，赖曼alpha辐射压可以使极区的气体下落反转，但是不会把吸积率降低太多。

There are mainly three kinds of complicated medium and structure: inhomogeneous, waveguide and anisotropic media.

对于不均匀介质，人们开展了比较多的研究工作，本文集中研究了水下波导结构和各向异性介质中的时间反转法。

1St order - Generalized Spitzer problem: Inversion of Collision Operator,Integrability Conditions and Identification of Thermodynamic Forces

一阶- 广义的Spitzer 问题：的反转碰撞算子，热力学的结合条件和鉴定

The JHU researchers prospectively examined changes in fibrosis stage between paired liver biopsies in 67 coinfected patients. Of the 67 subjects, six were excluded due to cirrhosis on the first biopsy. The median age of group was 44 years, and 75% of the subjects were men. A total of 86% had CD4+ cell counts of less than 200 cells/mm3, and the same number of subjects were receiving antiretroviral therapy. Twenty-seven percent of the patients abused alcohol. The median time between biopsies was 2.84 years (interquartile range, 2.05 - 3.41 years).

JHU研究人员前瞻性地检验67位共同感染病患成对肝脏切片的纤维化严重度变化，在67位受试者中，6位因在第1次肝脏切片时就已经是肝硬化而被排除；受试者平均年龄为44岁，而且75%的受试者为男性；86%患者的CD4+细胞计数低於200 cellsmm3，而且同样数目的受试者接受抗反转录病毒药物治疗；27位病患有酗酒的习惯；切片之间的平均时间为2.84年（四分位数中距为2.05－3.41年）。

In conclusion, these results reveal that intradermal injection of Type A botulinum toxin may be one of the alternative methods to reverse the aging phenomena of the skin.

本实验结果显示，真皮层内注射A型肉毒杆菌素或许可以成为反转老化现象的有效治疗之一。

However, his daughter Anna Freud clarified and identified the concepts of: undoing, suppression, dissociation, idealization, identification, introjection, inversion, somatization, splitting and substitution.

不过，他的女儿将这些概念进行了明确：消除、压制、分离、理想化、认同、心力投入、反转、外化、分割、代替。练习翻译？遇到难题？快来翻吧

Based on the foregoing strategy, we choose Inverse Modified Discrete Cosine Transform and Polyphase Synthesis Filterband of the MP3 decoder by an ASIC implementation. Moreover, to further reduce the hardware cost, we use CORDIC-based calculations and merging some arithmetic operations to replace the original ones of IMDCT and PSF.

基於前述的原则及由运算量的统计分析，我们选定「反转修正式离散余弦转换(Inverse Modified Discrete Cosine Transform， IMDCT)」与「多相位合成滤波频带(Polyphase Synthesis Filterband， PSF)」使用ASIC方式实现，同时为了有效降低这两个模组的硬体成本，我们导入「座标轴旋转数位计算机」及合并运算方式取代原始算术运算，使得新的计算式有效降低原IMDCT约74%之乘法及约49%加法运算，而在多相位合成滤波频带的反离散余弦转换也有降低约33.4%之乘法及约24.6%之加法运算。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。