Cheng Tai-yu (center), an engineer of the Anshan Power Bureau, Liaoning province, and workers developed an advanced technique for doing maintenance work on live 220,000-volt high-tension wires....
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Cheng Tai-yu (center), an engineer of the Anshan Power Bureau, Liaoning province, and workers developed an advanced technique for doing maintenance work on live 220,000-volt high-tension wires....