| 釋義 |
ballast /'baelast; 'baehst/ n [U] 1 heavy material (eg rock, iron, sand) loaded into a ship to keep it steady. (船中所裝用以保持平衡之) 壓艙物 (如石、鐵、 砂) 。 in carrying ~ only. 僅裝壓艙物的。 2 sand or other material carried in a balloon, to be thrown out to make the balloon go higher. 壓載物 (輕氣球所攜，于欲使氣球升得更高時(shí)可以拋棄之砂或其他物質(zhì)) 。 3 (fig) mental stability, (nfe) 心理之穩(wěn)定。 4 gravel, crushed rock, etc used to make a foundation for a road, esp a railway. (鋪路基，尤指鋪鐵道道床，所用的) 碎石。 vt [VP6A] supply with ~. 供應(yīng)擊艙物、壓載物或碎石。 |