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But as in the case of type-A materialism, either X is functionally analyzable, in which case the second step fails, or X is not functionally analyzable, in which case the first step fails.

但是，就如A类的情况，或者X是功能上可分析的，在这种下，第二步失败；或X不是功能上分析的，在这情况下第一步失败。

Fe(superscript 3+) occupied both tetrahedral sites in spinel block and trigonal bipyramid sites in mirror plane for LaFeMnAl(subscript 12-x-y)O19 (x=0.5, 1) hexaaluminate.

LaFeMnAl(下标 12-x-y)O19(x=0.5， 1)中Fe以Fe(上标 3+)位于六铝酸盐尖晶石结构中的四面体位和镜面层结构中的三角双锥位，其中后者为N2O分解的主要活性中心。

According as the four modes in a symmetric waveguide, that one of modes is symmetric or anti-symmetric about X axes or Y axes, are X polarized or Y polarized odd mode or even mode, we calculated the polarized coupling characteristics using Cassinian curves as boundaries of the couplers.

本文还根据对称波导中对称于或反对称于x轴或y轴的四个模式分别为x偏振或y偏振的奇模或偶模的原理，用Cassinian曲线表示耦合器介质波导的边界，计算了耦合器的偏振耦合特性。

The result "If X is a solution of a categorial equation, then there exists an unique essential solution Y such thatY X"makes it possible that the essential catgories of a word could generate all possible syntactic categories by some deductive rules.

定理&对于范畴方程的任意一个解x，都存在唯一的本质解Y使得Y x&使得我们可以通过一定的演绎规则对词w的本质范畴作扩张以得到w的所有句法范畴。

Call Ceil to obtain the lowest integer greater than or equal to X. The absolute value of X must be less than MaxInt.

调用ceil函数，返回大于或等于x的最小整数值。X的绝对值一定要小于最大整数值。

Six different deletion and insertion mutants of BBSV-X were constructed and these were inoculated to Chenopodium amaranticolor. The preliminary results show that the sat-RNA could enhance symptom of BBSV-X and its insertion mutants on Chenopodium amaranticolor, but the pathogenicity of the CP deletion mutants was reduced.

构建了BBSV-X基因组6个缺失和插入突变体，将它们的体外转录物单独或与sat-RNA一起混合接种苋色藜，初步实验结果表明，sat-RNA能增强全长BBSV-X基因组及含全长基因组的突变体对苋色藜所致的症状，但减轻CP缺失突变体的致病性。

Abstract］ Objective To explore the diagnosis and clinical application values of MRI on chondromalacia patellae.Methods 12 cases of chondromalacia patellae were checked by orthovoltage X-ray,the sick knee joints were scanned with 0.2 T permanent magnetic MRI,and the displays of X-ray and MRI were analyzed.

目的 探讨MRI用于髌骨软骨软化的诊断及临床应用价值方法对12例髌骨软骨软化患者行常规X线检查，并使用0.2 T永磁型MRI对患病膝关节进行扫描检查，观察分析髌骨软骨软化的X线及MRI表现。

Results The diagnostic accuracy of both MRI and X-ray film was 100%. Compared with X-ray, MRI was capable of clear display of the lesion extent, perpendicular periosteal reaction, the two layers of Codman's triangle and the skip lesions.

结果 MRI及X线平片对下肢骨肉瘤的诊断准确率均为100%，MRI在显示病变范围、放射状骨针、Codman三角两层结构以及跳跃病灶等方面明显优于X线平片检查。

The structure and stability of all possible isomers of C50X(X=SiH2, PH, S) were investigated by ab initio HF/3-21G calculations. The calculation results indicate that the preferred position for cycloaddition of SiH2, PH, and S on C50 is consistent, i.e. on the C3-C4 and C4-C4 sites of C50, and the resultant most stable cycloaddition isomers are [5,6]-closed and [5,5]-closed structures. The main driving force governing the stability of the C50X(X=SiH2, PH, S) isomers is the strain, or the conjugative effect, or the combination of strain and conjugative effect, depending on the addition positions and the types of the attacked C-C bonds.

用从头算HF/3-21G方法研究了C50的环加成衍生物C50X(X=SiH2， PH， S)所有可能的异构体的结构与稳定性，计算结果表明，SiH2基团、PH基团与S原子在C50上环加成的优先加成位置相同，都为C3-C4类键和C4-C4类键，并且相应形成[5，6]-闭环和[5，5]-闭环结构的最稳定异构体；决定C50X(X=SiH2，PH，S)各异构体稳定性的主要因素，因加成位置以及发生加成反应的C-C键的单双键类型的不同，可能是张力、共轭效应或者二者的共同作用。

Results:Fractures in body,angle and ascending branch of mandible could be showed fine by all these imaging methods. 3D-CT was better than 2D-CT and conventional X-ray plain film in diagnosis of fractures in condyle and coronoid process. Conventional X-ray plain film was poor in diagnosis of the maxillary fractures.2D-CT and 3D-CT were similar in diagnosis of the maxillary fractures.3D-CT showed the jaws fractures directly and stereoscopicly.

结果：对于下颌骨体部、角部和升支骨折，三种影像学都能很好的显示，对于髁状突和喙突骨折，三维CT检查优于常规X线和二维CT；常规X线显示上颌骨骨折较差，而二维CT和三维CT显示的准确性比较接近。

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。