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In Python 2.2, there are compatibility limitations on which classes can be used to multiply inherit from (otherwise, you get a "metatype conflict among bases" TypeError exception).

Python 2.2中，又一个多重继承的兼容性问题（因此，您会得到&metatype conflict among bases&异常）。

However, this approach is not appropriate, as it wilfully destroys one of Python's greatest strengths梥mooth, signature-based polymorphism.

然而，这个方法不合适。因为它破坏了python最伟大的力量之一，基于签名的多态。

Earlier, we indicated that strings in Python do not have a terminating NUL character like C strings.

Python里面没有C风格的结束字符NUL，你输入几个len函数的返回值就是几。

Refer to Python's library manual for more information on the pickler.

请参考Python库手册，以了解更多pickler的信息。

In recent Python releases, the pickler introduced the notion of protocolsstorage formats for pickled data.

在最近的Python版本中，pickler推出了协议的概念：pickle数据的保存格式。

The Pointrel Data Repository System is code in Python and Smalltalk to store information in a triadal format, similar to the Entity-Relationship database model.

该软件使用Python和Smalltalk开发，可使用三元组格式存储信息，与实体-关系数据库模型类似。

For instance, long-running C extension functions in threaded applications must release and later reacquire the global interpreter lock, so as to allow Python language threads to run in parallel.

例如，带线程的应用中，执行时间很长的C扩展函数必须释放全局的解释器锁，并在后来再次获取，这样才能让Python语言的线程并发运行。

Python enables programs to be written compactly and readably.

Python 可以写出很紧凑的，可读性很强的程序。

Python enables programs to be written compactly and readably.

Python 可以写出很紧凑和可读性很强的程序。

Python enables programs to be written compactly and readably.

Python可以写出紧凑易读的程序。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。