试验结果表明该装置性能优良、保护齐全、使用方便，是煤矿井下理想的高压真空配电装置。
The results of the experiment show that it is a type of perfect mine high-voltage vacuum distribution equipment, which is of high quality in its performance, protection and use.
试验结果表明该装置性能优良、保护齐全、使用方便，是煤矿井下理想的高压真空配电装置。
The results of the experiment show that it is a type of perfect mine high-voltage vacuum distribution equipment, which is of high quality in its performance, protection and use.
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