| 1. | Arc lamps require a current-limiting ballast .
弧光灯需要一个限流镇流器。 |
| 2. | The rail beds well on the ballast .
铁轨在道碴上搁得很稳。 |
| 3. | He furnished psychological ballast to a desperate president .
他给一位在绝望中挣扎的总统提供了心理镇定剂。 |
| 4. | The rails of the two tracks are supported on wooden ties resting on a ballast .
两条线路的钢轨放置在有道碴承托的枕木上。 |
| 5. | So are the motions of a little vessel without ballast tossed about on a stormy sea .
在惊涛骇浪的大海上，一只没有压舱物的小船就是这样颠颠簸簸。 |
| 6. | It was my conviction that a concept of our fundamental national interests would provide a ballast of restraint an assurance of continuity .
我认为，对于我们的基本民族利益有了一个概念，才能保证沉得住气，才能保证始终如一。 |
| 7. | Self ballasted lamps for general lighting services
一般照明用自设镇流器的灯； |
| 8. | Marine ballasts for high pressure mercury vapour lamp
船舶用高压汞蒸气灯镇流器 |
| 9. | General specification for ballast tanks paint of ship
船舶压载舱漆通用技术条件 |
| 10. | Fluorescent lamp ballasts , methods of measurement of
荧光灯用镇流器的测量方法 |
