所有关于这种品质的实用性的观点，很明显是思考后的想法，而不是最初就让我们赞成的。
The idea of the utility of all qualities of this kind, is plainly an after-thought, and not what first recommends them to our approbation.
第四，加强“旁栏思考”的实用性；
Fourth, strengthening the practicality of the thought beside pen using open operation.
主要介绍了继电保护中的几个误区，引导有关人员冷静对待、正确思考问题，在电气生产一线具有一定实用性。
The paper mainly introduces the misunderstanding in relay protection, guiding the calm treatment and correct thinking of the workers, which is very practical in electrical production.
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