perpetual motion machine | (n) a machine that can continue to do work indefinitely without drawing energy from some external source; impossible under the law of conservation of energy |
perpetual motion machine | (n) a machine that can continue to do work indefinitely without drawing energy from some external source; impossible under the law of conservation of energy |
永动机 | [永 动 机 / 永 動 機] a perpetual motion machine #77,528 [Add to Longdo] |