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Recent advancements in ultradeep drilling have led to a worldwide surge in ultradeep wells, making them pivotal to the energy industry.

Such microelements include a "rotating table" for eating and working, which tucks away into a row of built-in cabinetry that is located along one wall.

"The feedstock, as small as it is (only 2.3 millimeters thick), requires an exact proportion of microelements," said Wang Huimian, senior engineer of Taiyuan Iron and Steel.