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1·Air pollution is often identified with major stationary sources, but the greatest source of emissions is mobile sources, mainly automobiles.

空气污染通常是与主要的固定污染源，但排放的最大来源是移动来源主要是汽车。

2·Keep positional tracking in mind with audio design; for example, sounds should get louder as the user leans towards their source, even if the avatar is otherwise stationary.

进行音频设计时要时刻铭记对于位置追踪信息的应用；例如，当用户靠近音源时，音源应听起来更响，即使替身此时被固定。

3·In the paper, it is discussed the whole process of quality control in waste gas (stationary pollution source) monitoring, which includes the preparation, monitoring, and data processing, etc.

文章探讨了废气(固定污染源)监测中监测前准备、监测过程、数据处理等全程序的质量控制。

4·On the basis of the stationary state mathematical model of a PWM current-source converter, the paper analyzes the coupling of a converter and presents a simple decoupling feedforward control method.

在建立电流源型PWM变流器稳态数学模型的基础上，分析了系统的耦合关系，提出了一种基于小偏量线性化的前馈解耦控制方案。

5·According to the given topology of voltage source converter based HVDC system (VSC-HVDC), three-phases mathematic model in stationary frame is established.

在讨论电压源型高压直流输电（VSC-HVDC）的控制策略中，根据所给出的拓扑结构，建立三相静止系统下的数学模型；

6·Investigation characteristic of real world audio, combine stationary for short time-scale and non-stationary for longer time-scales, proposed a time frequency domain blind source separation algorithm.

研究了实际环境语音信号的特性，结合语音信号的短时平稳性和长时非平稳性，给出了一种时频域盲分离算法。

7·A new adaptive blind source separation algorithm of non-stationary signals was presented by using natural gradient rule and time-correlation property of the source signals acting on a cost function.

基于自然梯度原则并利用信号的时间相关属性对一类代价函数进行推导，获得一种新的非平稳信号自适应盲分离算法。

8·In this paper a calculating formula is introduced for measuring the strength of internal heat source produced in machine tool while revolving in accordance with steady and non-stationary state.

本文针对定常和非定常热状态推导了机床在运转中产生的内部热强度的计算公式。

9·The first stationary contact may be connected to a phase of a high-voltage power source.

第一静接点可以与高压电源的一个相连接。