The reasonable blasting height, blasting parameters, and united initiation network of fuse and non-electric were designed in the demolition so as to reach an ideal blasting effect.
通过计算设计了合理的炸高和爆破参数，根据周围环境条件选用了导爆索和导爆管联合起爆网路，爆破拆除达到预想的效果。
It expounds how to use non-contact switch to stop the short circuit of the electric apparatus and lamp circuits etc. from sparking, and shows experimental and practical parameters.
阐明了如何使用无触点开关来防止电器线路及灯具等短路产生的火花，并给出了实验和实用参数。
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