We first introduce three methods of finding the sum of the first n terms for an arithmetic sequence of higher order, and then display another method by some formal derivatives of which are defined.

First of all, let's inspect what is obviously an optimized arithmetic sequence.

首先，我们来分析这段代码的开头的几行，很显然这几行代码是一个优化过。

The sum arithmetic sequence of higher order in its broad sense

广义高阶等差数列的和

On Several Inequality of the Power of Positive Term Arithmetic Sequence; The result shows that the utility of the arithmetic progression can limit the first kind of misread.

关于正项等差数列方幂的若干不等式研究结果表明，等差数列的利用可规范第一种误读。

There were letters sent long ago to Onias the high priest from Arius who reigned then among you, to signify that you are our brethren, as the copy here underwritten doth specify.

从前管辖你们的君王阿勒乌，致书大司祭敖尼雅时，曾称你们是我们的弟兄，正如所附副本指出的一样。

The theological doctrine taught by Arius that Christ the son was not consubstantial with God the father.

阿里乌的神学教义认为圣子和圣父并不同体。

Arius: greek Christian theologian and founder of arianism, a doctrine that led to his condemnation as a heretic.

阿里乌斯：希腊基督教神学家和阿里乌斯派创始人。他的教义致使他被定罪为异端。

The experiment results in laboratory showed that ARJ had good performance in increasing viscosity, lubricity, and inhibiting a-bility.

对ARJ进行了室内性能评价，实验结果表明，ARJ具有较好的增粘性、降滤失性、抑制性及润滑性。

Copy of More Document with Skill ARJ

巧用ARJ高效率备份大量文件

Preparation and Evaluation of Multifunctional Additive ARJ for Drilling Fluid

多功能钻井液添加剂ARJ的研制和评价

The study of ARJ interpretation method and object solving algorithm

ARJ解释方法及其目标求解算法的研究

A constitution was established and the Confederation was born.

宪法建立了并且联邦出生.

A Texan was boasting to an Arkansan about his ranch. a person who can make up extemporaneous songs while playing the dongbula is called an aken, which means a wandering minstrel.

有一个得克萨斯人对一个阿肯色人吹嘘自己的牧人们把即席作词演唱歌者称为“阿肯”，意即游唱诗人。

He had come to the meeting with Southwestern's NSA delegate, Debbie Sale, also an Arkansan.

塞尔一起来参加会议，后者是全国学生联合会西南地区的代表，也是来自阿肯色州。

Core descriptions, conventional thin section, injecting thin sections, SEM observations, X ray analysis of clay minerals, mercury injection data and pattern analysis of pore structures show that the major rock types are lithic sandstone, feldspathic litharenite and lithic arkose.

岩芯描述和常规薄片、铸体薄片、扫描电镜、X衍射分析及压汞资料研究表明，安棚深层系的岩石类型主要为岩屑砂岩、长石岩屑砂岩和岩屑长石砂岩。

In addition, under the combined influence of sedimentary and diagenesis which are mainly feldspar dissolution, the physical property of feldspathic litharenite is the best, the lithic arkose is middle, and the feldspar quartz sandstone is the worst.

由于在沉积作用和以长石溶蚀作用为主的成岩作用共同影响下，长石岩屑砂岩的物性最好，岩屑长石砂岩其次，长石石英砂岩最差。

According to the mineralogy analysis, the sandstone of ore-bearing stratum is confirmed on lithic arkose. The uranium deposit occurs in the Jurassic arkose sandstone being located in the exocontact zone of quartz-syenite intrusive body.

从U、Se、V、Mo和Re等元素含量在单个钻孔及钻孔剖面中变化特征可知东胜砂岩铀矿经历过氧化作用成矿。该矿床赋存于石英正长岩体外接触带侏罗系长石石英砂岩中。

The petrological-chemical analysis of clastic sedimentary rocks from Quantou Formation, Cretaceous indicates that their lithology mainly consists of arkose, shale and minor rock debris sandstone and greywacke by chemical classification of bulk elements.

通过对白垩系泉头组碎屑沉积岩岩石样品的岩石化学分析表明：主元素化学分类结果主要为长石砂岩、页岩，少量岩屑砂岩和硬砂岩；

The reservoir lithology of oil bearing Huagang formation on Sudi structural belt in Xihu depression is mainly lithic arkose, feldspathic litharenite and feldspathic quartzitic sandstone.

西湖凹陷苏堤构造带花港组油层储集岩主要为岩屑长石砂岩、长石岩屑砂岩、长石石英砂岩，岩屑含量较少，岩石成分成熟度和结构成熟度均较高。

The conclusions are the following: ① The reservoir-rock types in Yan-chang formation are mainly arkose, secondly litharenite and lithic arkose in low compositional maturity.

结果表明：①该组砂体以长石砂岩为主，次为岩屑砂岩和长石质岩屑砂岩，矿物成熟度低；

Analysis results of a number of testing data indicated that: sandstone reservoir of Fu-Yang oil-bearing layer has lower composition maturity, mainly are feldspathic arenite and lithic arkose.

大量化验测试资料分析结果表明，扶杨油层砂岩储层成份成熟度较低，岩石类型以岩屑质长石砂岩和长石质岩屑砂岩为主。