反之

Firstly, it's proved that the base of free monoid is unique, and that the equation of a base, a generating set and a irreducible generating set in the semigroup with length; Secondly, it's given the relation of a primitive word and a word of indecomposable--Let and is indecomposable, then is primitive ;And by using the length's method and chart,some properties of primitive word have been proved and the solutions of the equation , are discussed; Lastly, on the base of some proposition in Free monoids and Languages ,the proofs of some properties are improved by instruction. For example: Let be a primitive word over X, where .Then is a code. And let then if and only if {} is a code.

首先，讨论了含幺半群中基的基本性质及基与最小生成元集的联系，并给出了含幺半群中基、生成元集、不可约生成元集三者之间的关系；证明了在有唯一长度的半群S中，不可约生成元集、基、最小生成元集三者之间的等价关系；其次，讨论了字的组合与分解性，得出了字的本原性与不可分解性之间的关系---若为不可分解的，则一定是本原的，反之，不一定真；并运用图示法证明了字的可补性理论，讨论了方程，的可解性；在此基础上，用归纳法进一步证明了本原字与码的有关命题--若是X上的一个本原字，其中，则是一个码；若则当且仅当{}是一个码。

His features were like his sister's, but in her, everything was radiant with joyous life, with the complacent, never-failing smile of youth and life and an extraordinary antique beauty of figure. The brother's face on the contrary was clouded over by imbecility and invariably wore a look of aggressive fretfulness, while he was thin and feebly built.

他的面部和他妹妹的一模一样，但他妹妹那乐观愉快的、洋洋自得、充满青春活力、朝夕不变的微笑和身段超人的古典美，使她容光焕发，倾城倾国；反之，哥哥的长相却显得愚昧昏庸，总是表现出十分自信和不满的神态，他身子既瘦且弱，疲软无力。

The fundament of the relationship between the citizen and city is the city's own diversity and flexibility.

城市内容的多样及可变性是保证市民与之亲密相处的基础；反之，保持一个灵活、可变的多样性的城市生态环境，是市民和城市相处的关键。

In the base of population and quantity of house-completed data of Xi'an, the paper builds an Auto-regressive Distributed Lag Model of population Geordie coefficient and quantity of house-completed, and analyzes the relationship between the two, which find that house construction is one cause of population suburbanization, but contrarily it's not.

本文以西安市人口和住宅竣工量为基础数据，建立人口基尼系数和住宅竣工量之间的自回归分布滞后模型，并对二者的关系进行了分析，发现住宅建设是西安市人口郊区化的动力之一，反之则不然。

Relative abundance of Acaulospora and Archaespora increased as siol organic matter content increased, and Glomus inversely.

种Acaulospora sp、Archaespora gerdemannii的相对多度随有机质含量的增加而呈上升趋势；Glomusgeosporum反之。

Throughout the range of ancient civilization (leaving the newer civilizations out of account for the moment) we find evidence of Dionysian celebrations which stand to the Greek type in much the same relation as the bearded satyr, whose name and attributes are derived from the goat, stands to the god Dionysus.

反之，我们不必凭猜测就可以肯定：醉境中的古希腊人和醉境中的野蛮人之间，当然隔着一道不可逾越的鸿沟。

Instead, both entertainment and software industries are grappling with new ways to monetize tremendous interest in their products.

反之，双方拼杀与娱乐软件产业是货币化的新途径，在其产品的极大兴趣。

It means that Gross domestic product is higher or Gross national income is higher both are good for population natural growth rate growth at low speed, vice versa.

意即国内生产总值越高，或是国民总收入越高，均有利於人口自然增长率的低速增长；反之，人口愈增长，对GDP及GDI愈有不利的影响。

Because you approached the fear of the LORD with your heart full of guile.

因为，你没有怀着敬畏之心亲近上主，反之，你的心却充满了诡诈。

A scheme to enhance a computer system's power or hardware while maintaining software compatibility,or vice versa.

在保持计算机软件兼容的同时提高计算机系统的能力或硬件功能的一种方案，或反之。

What are your goals and strategies for growth?

你的成长目标和策略是什么？

And unto the angel of the church in Sardis write; These things saith he that hath the seven irits of God, and the seven star I know thy works, that thou hast a name that thou livest, and art dead.

3：1 你要写信给撒狄教会的使者，说，那有神的七灵和七星的，说，我知道你的行为，按名你是活的，其实是死的。