negative polarity
英 [ˈneɡətɪv pəˈlærəti]
美 [ˈneɡətɪv pəˈlærəti]
负极性
双语例句
- Character analysis of negative polarity weak plasma arc overlaying welding
反极性弱等离子弧堆焊基本特性的分析 - The corona inception voltage produced by negative polarity increased at first and then decreased, and corona characteristic has little changes.
负极性电晕起晕电压先升高后降低，电晕特性变化很小。 - The corona voice strengths and levels of radio interference produced by positive polarity wire have little changes, and those produced by negative polarity wire increase with temperature.
正极性导线电晕声音和无线电干扰变化都不大；负极性导线电晕声音和无线电干扰都增大。 - DIS has its own drawbacks by having half of the plugs firing with an acceptable negative voltage, while the other half is fired by the less acceptable positive polarity.
DIS有自身的缺点，由于有一半的插头接通一个可接受的负电压，而另一半接通不太能接受的正极。 - The Equipment of Negative Polarity Weak Plasma Arc Overlaying Welding and the Researching of Arc Character
反极性弱等离子弧堆焊设备及电弧特性研究 - The results showed that negative air ion concentrations increased gradually and ion polarity ratio decreased gradually from city center to suburb.
结果表明：从福州市中心向郊区空气负离子浓度逐渐增大，单极系数逐渐减小； - What is the constraint on the use of the negative polarity item ever in before clauses?
制约非断定性词项ever在before从句中使用的条件是什么？ - Primary inverter rectifier outputes positive polarity end and negative polarity end. In bipolar output end, voltage ′ s and current ′ s static characteristic are completely identical with associated dynamic characteristic respectively.
一次逆变整流输出正极性端和负极性端，双极性输出端的电压电流静态特性与动态特性完全相同； - Syntax and Semantics of Negative Polarity Items in English and Mandarin Chinese
英汉语中负极词的句法及语义研究 - The experimental results of analogue circuit show that type-S negative resistance can be obtained by using two like polarity transistors with various circuit connections.
模拟电路实验证明用两个同极性的晶体管以多种电路接法都能获得具有S型负阻特性的两端器件。 - Based on the experiments, the conclusion is drawn that it is reasonable to set a2 μ s dead time between driving signals of inverter AC arc welding during positive and negative polarity period.
在比较分析的基础上，得出的结论是：逆变交流弧焊电源二次逆变正反极性控制驱动信号之间设置2μs死区时间最为合理。 - In the case of negative CG flashes, the sequence pulses tend to be of the same polarity as that of the succeeding return stroke, and their separating time average is about 160 μ s. The duration of the whole sequence is about 2.2 ms on average.
地闪初始击穿大脉冲序列极性通常与后面的回击极性相同，相邻大脉冲之间的平均间隔为160μs，大脉冲序列持续时间平均为2.2ms。 - Based on three years of observation on the spatio-temporal changes of negative air ion concentrations in Beijing, air quality was assessed using ion polarity ratio and air ion assessment index ( CI).
根据北京地区3年的空气负离子浓度时空变化的实测资料，利用空气离子单极系数及安倍空气离子评价指数对北京地区空气质量进行了初步评价。 - The circuit can output analog voltage signals with positive and negative polarity according to the phase relation of encoder signals of orthogonal output type.
它可以根据正交输出型编码器信号的相位关系，输出具有正负极性的模拟电压信号。 - When electrode negative ratio is zero, which is using MIG welding with DC ami welding wire being positive polarity, weld penetration is maximum, wire melting speed and deposition rate are minimum;
当负极性比率等于零即直流且焊丝为正极性的MIG焊时，其焊缝熔深最大，焊丝熔化系数最小，熔敷速度最小； - The Argumentation about Term and Concept Negative Polarity Item: Its Polarity Sensitivity and Licensing Conditions
关于词项和概念的辨析负极词的极端敏感性及允准条件研究 - The result showed that it is in the period of droplet growth at the tip of welding wire that an electrochemically gained oxygen was produced in the case of direct current negative polarity whereas an electrochemically lost oxygen in positive polarity.
结果表明，在焊丝末端熔滴生长阶段，直流反极性条件下存在电化学增氧，而直流正极性条件下则存在电化学脱氧。 - When the aqueous side is negative, the polarity of PD was found to depend on the concentration of Cl-in the solution and this likely indicated that Cl-was the main composition to generate the transepithelial PD of human ciliary epithelium. 3.
房水侧PD极性依赖于细胞外Cl-的浓度，Cl-可能是人眼睫状体上皮跨膜电位产生的重要成分。 - The polyphenol contents decreased in the order of ethyl acetate fraction, butanol fraction, ethanol extract and water fraction, which had a negative correlation with the solvent polarity.
总酚含量依次为：乙酸乙酯相＞正丁醇相＞醇提物＞水分级相，与溶剂极性呈负相关。 - By increasing absolute value detection, the HPF circuit can trigger the system when it automatically runs, regardless of transient pulse polarity is positive or negative, the circuit can transform it into single polarity, realizing automatic capturing transient disturbance for the system.
增加绝对值检测的触发电路能够在系统自动运行时，无论瞬态骚扰脉冲的极性如何，都能将其强制转换为单极性，可以实现自动捕获瞬态骚扰。 - The thesis had researched and designed the negative polarity weak plasma arc overlaying welding, overlaying welding gun and the control system of PLC.
本文对反极性弱等离子弧基本特性、堆焊焊枪、控制系统的PLC应用进行了研究和设计。 - The transepithelial PD may be positive or negative at aqueous side in human ciliary epithelium. The polarity is not related to the post-enucleated time of eye balls.
人眼跨睫状体上皮电位差PD可表现为房水侧正性或负性，与睫状体组织离体的时间无相关性。