ballast

UK:  ['bæləst]

US:  ['bæləst]

复数：ballasts  过去分词：ballasted  现在分词：ballasting  

v.

1.在…上装压舱物[沙囊];为(铁路等)铺道碴;使稳定,使沉着

n.

1.镇重物,压载物,压舱物,底货(石、沙等);(轻气球的)沙囊

2.〔交〕道碴

3.使(性格)坚定的经验[道德等],稳定因素;〔比喻〕沉着,稳定

4.铺道渣

5.〔船〕压舱物

6.碎石

7.〔电信〕镇定物,平稳器;镇流电阻

8.路基

9.【电学】镇流电阻,镇流器

10.【铁路】道碴,道圆

1 . It had a huge ballast hidden in the handle and a very substantial extension cord.
把手里藏着一个巨大的镇流器，和一根非常结实的延长线。

2 . The IMO is now trying to extend this success to deal with threats from ship paints and ballast water discharge.
国际海洋组织如今正设法扩大成果，以处理由于船漆和压舱水排放而造成的威胁。

3 . ( Laughter ) ( Applause ) It's clear that it's not easy to know which ballast to drop and which altitude to take .
（笑声）（鼓掌声）显然，并不容易知道要放弃哪一个压舱物，并采取什么一种高度。

4 . Like this little vessel that would rise up to heaven were it not held down by ballast - bags of sand.
就像这个小艇，如果不是由沙袋压着，它就可以升到天空。

5 . The space between the two hulls is often used for storage of fuel or ballast water.
两壳之间的空间通常用于贮存燃料或压载水。