This paper simply mentions the function of TN-C system neuter line, the circuit analysis of two single-phase circuit in common the neuter line.
简述TN - C系统中性线的作用，两个单相回路共用中性线的电路分析，中性线断线后的危害以及在实际应用中需采取的保证措施。
Objective To detect the expression of tenascin-C(TN-C)and tenascin-X(TN-X)in the embryonic heart of rats, investigate their role during the heart development.
目的检测韧黏素-C（TN-C）和韧黏素-X（TN-X）在大鼠胚胎心脏中的表达，探讨其在胚胎心脏发育过程中的作用。
The earthing modes of TN-C, TN-S and TN-C-S systems are compared in this paper and the TN-C-S system is used widely because it has concluded to more advantages.
针对TN三种系统的接地型式，分别进行比较论述，提出TN-C-S系统因其优点较多，将得到广泛地应用。
The growth of influent C/N and C/P inhibited the proliferation of the activated sludge by decreasing the influent TN and TP concentration and thereby inhibited the phosphorus release and uptake rates.
C/N和C/P的增长使系统进水TN、TP浓度降低，对活性污泥的增殖有抑制作用，进而使厌氧释磷速率和好氧吸磷速率降低。
According to the re-earthing TN-C-S system adopted usually by foreign country, the paper analyses main function, value etc. of re-earthing resistance. These respects can be referenced for designer.
根据国外普遍采用重复接地TN C S系统的情况，分析重复接地电阻的主要作用、取值等有关问题，供建筑供电设计参考。
According to the re-earthing TN-C-S system adopted usually by foreign country, the paper analyses main function, value etc. of re-earthing resistance. These respects can be referenced for designer.
根据国外普遍采用重复接地TN C S系统的情况，分析重复接地电阻的主要作用、取值等有关问题，供建筑供电设计参考。
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