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1·Tone is the most important external characteristic in Chinese pronunciation.

声调是汉语语音最重要的外显特征。

2·The paper analyzes the control algorithm of PI, external characteristic of power source and the feeding speed.

分析了PI控制算法、电源外特性控制算法、送丝速度控制算法，以及控制程序的优化设计。

3·The Lower the External Characteristic of the Iron-core Transformer, the Lower the Power Factor of the Inductive Load?

感性负载功率因数越低，铁芯变压器的外特性越下降吗?。

4·The double steps external characteristic of the welding rectifier is realized by closed loop feedback and PID arithmetic.

通过闭环反馈及PID算法实现了焊机的双阶梯形外特性。

5·Analysis results of external characteristic show that the simulation results of turbulent flow agree well with the theoretical value.

分析外特性结果表明，湍流场数值模拟结果与理论值吻合较好。

6·The view of limit, as merely an external characteristic of being-there-and-then, arises from a confusion of quantitative with qualitative limit.

认为限度是定在之一个单纯外在规定的看法，乃基于混淆了量的限度与质的限度的区别。

7·SCR is triggered and external characteristic is tested. The testing results show that the trigger generator is highly integrated and its work is reliable.

采用该触发脉冲发生器对晶闸管弧焊整流器的晶闸管进行了触发并测试了该整流器的静特性。

8·A new type of underwater welding system is studied, which includes an oscillating wire feed system and a welding power source with staircase external characteristic.

研究了一种新型的水下焊接系统。系统中弧焊电源输出阶梯型的外特性，送丝系统采用脉动送丝方式。

9·The output waveform of the oscillating wire feed system and the external characteristic are controlled and adjusted by a single-chip microcomputer (SCM) synchronously.

在单片机控制下，脉动送丝波形与外特性同步调控。在停止送丝阶段，单片机令电源输出电压为峰值，焊丝在此电压下返烧并形成熔滴。

10·Effects of external characteristic of typical are welding power sources on the welding spatter was studied by the specific slope- controlled SCR are - welding rectifier.

利用特制的变结构晶闸管整流焊机，研究典型焊机外特性对焊接飞溅的影响；