ballast
发音
英 [ˈbæləst]
美 [ˈbæləst]
-
- n.
- 压舱物,压载物
- 道渣,碎石
- 镇流器
- <比喻>沉着
-
- vt.
- 给某物装上压舱物
- 给…铺道渣
- 使稳定
- 使沉着
单词词源
ballast 压舱物
bal, 词源同bare, 仅仅,字母l,r 音变。last, 古词义,重担。
双语例句
- 1. He said styrofoam ballast kept the debris afloat as it crossed the open sea .
- 他说,这块残骸穿越海洋时,聚苯乙烯泡沫塑料的压舱物使它漂浮在了水面上。
- 2. These tiny birds weigh around a kilogram and are shot up in lieu of ballast or in empty nooks and crannies on full-blown satellite launch missions .
- 这些皮卫星重量仅仅只有一公斤左右,在压舱物中、空闲角落及繁忙的卫星发射任务间隙可以迅速发射。
- 3. This means that teams with kers have less ballast to move around the car and hence have less freedom to vary their car 's weight distribution .
- 这就是说使用kers的车队使用了更少的压舱物来移动赛车,因此有较少的自由来改变他们的车的重量分配。
- 4. At sea , meanwhile , on any day it is estimated that around 3000 species of aquatic animals and plants are being carried around the world in ballast .
- 然而据估计,海路上每天都有约3000种水生动物和植物混在船只的压舱物中周游世界。
- 5. Then the sound of rumbling thunder reached the watchers on the shore , as cargo , ballast , ammunition and 400 people went sliding and crashing down to the port side of the steeply listing ship .
- 当物口、压舱物、弹药和400个人轰地一声滑向陡斜的左舷时,岸上的观众听到了雷鸣般的轰响。