懸臂起重機提升和移動重物的機器，它由一個帶有纜繩和滑輪的可移動的、並與一根由向上靜止橫樑的底座連接的起重桿組成
A machine for hoisting and moving heavy objects, consisting of a movable boom equipped with cables and pulleys and connected to the base of an upright stationary beam.
浮舟用於支撐浮橋的船隻，可以輕易移動的建造物，如平底船
A floating structure, such as a flat-bottomed boat, that is used to support a bridge.
木材堵塞一堆擠在一起的、無法移動的飄浮的原木
An immovable mass of floating logs crowded together.
然後來了一股迅速移動的冷鋒。
Then along comes a rapidly moving cold front.
