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(noun.) a cooking utensil of parallel metal bars; used to grill fish or meat.

(noun.) an electrode placed between the cathode and anode of a vacuum tube to control the flow of electrons through the tube.

(noun.) a perforated or corrugated metal plate used in a storage battery as a conductor and support for the active material.

(noun.) a pattern of regularly spaced horizontal and vertical lines.

录入:西德尼