查询词典 arithmetic al function

A terephthalate anion-pillared Ni-Al hydrotalcite-like layered double hydroxide was synthesized on the surface and within the pores of γ-Al 2O 3 by in situ crystallization and a polytungstate anion-pillared hydrotalcite was subsequently obtained by ion-exchange.

采用原位沉积法在γ-Al2O3表面原位合成了对苯二甲酸阴离子柱撑的镍铝水滑石，并用同多钨酸根阴离子部分交换了镍铝水滑石中的对苯二甲酸阴离子。

Objective: To explore the MRI presentative characteristics of vir al encephalitis and toevaluate the relationship between the MRI diagnosis of vir al encephalitis and the clinic prognosis.

目的：探讨病毒性脑炎MRI影像的表现特点、检查方法的选用，以及病毒性脑炎MRI影像表现与临床预后的关系。

In present work, Al〓O〓/Ti Ceramics with several weight percent Ti were made by pre-sintering and pressureless sintering at flow of Ar with Al〓O〓/Ti covered powder.

但是，金属氧化物的使用可能会降低材料的机械性能，以过快的升温速度烧结又有可能导致产品不均匀受热。

Selecting three typical pseudobinary eutectic systems, Al-Mg〓Si, Al-Mg〓Ge and Ge-AlSb, as the basic modelling system, this paper studied the regularity of composition selection and growth ect.

本文以恒温度梯度热分析、金相分析、定向凝固及熔体X射线衍射分析为主要手段，以Al-Mg〓Si、Al-Mg〓Ge和Ge-AlSb三个伪二元共晶体系作为基本的模拟系，对A-BC〓型伪二元定向共晶复合体的成分选择与生长等规律作了较为系统的研究。

Al /AlLi-Mg〓Si and α/TiAl〓-Mg〓Si pseudobinary directional eutectic composites with fine structural integrity were achieved by investigating the influence of various amounts of alloying Li and Ti on the eutectic line, the preferred eutectic reaction point and the range in which eutectic structure appears in Al-Mg-Si system, through which the modification on the matrix and strengthening phase in this system was realised.

通过考察不同含量Li和Ti合金化对Al-Mg-Si系中共晶线、最佳共晶成分点及产生共晶组织的范围的影响，制备了组织完整性良好的α/AlLi-Mg〓Si和α/TiAl〓-Mg〓Si伪二元定向共晶复合体，从而实现了对其基体和强化相的调整。

MethodsThe p73 gene ex- pression in 100 cases of AL including newly diagnosed and recrudescent or refractory ones and 20 normal controls was detected by relative quantitative reverse transcriptase polymerase chain reaction,and then the results were analyzed and compared by χ2-test,t-test and single agent variance. ResultsThe higher expression of p73 gene was found in 58% of AL cases.

采用RT-PCR方法检测100例初诊及复发或难治AL患者和20例正常对照者p73基因的表达，并采用χ2检验、t检验及单因素方差分析对结果进行统计学分析，以比较各组p73基因表达阳性率及表达强度差异。

Based on the metastable phase formation mechanism of the rapidly solidified Ti-Al peritectic alloy, two effective surface modification processes of laser resolidification were put forward to perform the design of the phase structure in the bulk materials, which would widen the application range of Ti-Al alloys.

按照快速凝固 Ti-Al 包晶合金中亚稳相形成机制，提出了两种新的激光重凝表面处理技术，实现了块体材料的相组成设计，为拓宽 Ti-Al 合金的应用范围提供了新的思路。

In the lower lumbar spine,these numbers are reversed.45 Studies by Grobler et al.48and Boden et al.49 found a positive association between degenerative spondylolisthesis and more sagittally oriented lower lumbar facet joints.

Grobler 和 Boden 等人的研究发现，下位腰椎小关节的矢状走向的程度与退变性腰椎滑脱之间存在相关性。

Al-Takhi was believed to be the leader of al-Qaida forces in and around Samarra.

阿尔-塔希和其他两名激进分子在星期五萨马拉附近的一次突袭行动中被击毙。

U.S. and Iraqi officials say Hamid al-Takhi, local leader of al-Qaida in Iraq, has been killed with two other militants by coalition forces Friday during a raid near the city of Samarra.

美国和伊拉克官员说，基地组织地方首领哈米德。阿尔-塔希和其他两名激进分子在星期五萨马拉附近的一次突袭行动中被击毙。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。