ballast

noun

1. （船中保持平衡的）压舱物；（热气球的）镇重物
   heavy material placed in a ship or hot-air balloon to make it heavier and keep it steady
2. （用作公路或铁路路基的）道砟
   a layer of stones that makes a strong base on which a road, railway/railroad, etc. can be built

1. 压舱物；镇重物
   Ballast is any substance that is used in ships or hot-air balloons to make them heavier and more stable. Ballast usually consists of water, sand, or iron.

1. Arc lamps require a current-limiting ballast.
   弧光灯需要一个限流镇流器。
2. This is the air-actuated poppet valve that will serve as the ballast tank blow vent.
   这是空气驱动锥阀将充当压载水舱的打击，发泄。
3. The worldwide travel of the ballast water causes concerns about its influence over the environment.
   压载水被带至世界各处，这使人们不得不担心这一现象给海洋环境所带来了影响。
4. This first lifting shall be carried out the same day as the unloading of the ballast.
   首次提升应与道碴卸载于同一天实施。
5. The operation principle of the DC/ AC converter for the electronic ballast of high-voltage sodium lamp is presented.
   对高压钠灯电子镇流器DC/AC变换器的工作原理做了说明。
6. Alternating-current high-voltage contactors Ballast, ignitor and terminal pillars are installed in the body.
   GB14808-1993交流高压接触器灯体内装有镇流器、触发器和接线柱。
7. No, but we can pump in ballast water while discharging the cargo to keep the ship well balanced.
   不，但我们在卸货时可以泵入压载水，以使船舶得到良好平衡。
8. From the feel of it I shouldn't need to much ballast or foam.
   从的感觉，这我不应该需要很大的压载或泡沫。
9. Fluorescent Lamp Electronic Ballast's Design and Analysis Based On Sliding Technology
   基于滑频的荧光灯电子镇流器的分析与设计
10. The distribution characteristics and survival states of organisms were correlated with the age and salinity of ballast waters.
    外轮压舱水生物的分布及生存状态与水样的水龄和盐度相关。
11. The utility model relates to a low-tension sodium lamp electronic ballast, belonging to the field of lighting technology.
    本实用新型低压钠灯电子镇流器，属于照明技术领域。
12. Unclip ventilation hose and ballast resistor.
    旋开通风软管和镇流电阻器。
13. Supplement ballast and renovate subgrades;
    补充道碴和对路基进行整修；
14. This article will introduce based on the ballast entire digital public lighting system.
    本文将介绍基于镇流器的全数字公共照明系统。
15. Can cargo and ballast pumps be controlled from the ccr?
    货泵和压载泵能否在货控室控制？
16. Talking about International Convention for the Control and Management of Ship's Ballast Water and Sediments
    浅谈国际船舶压载水和沉积物控制与管理公约
17. In order to ensure ship safety, we must know the ship ′ s ballast tank pressure loss.
    为了确保更换压载水时船舶的安全，设计船舶时必须对船舶压载舱压力损失进行计算。
18. Maintaining floating dock's floating condition by adjusting ballast water is an important problem during its application.
    浮船坞通过调节压载水控制自身浮态从而保证正常工作状态是其使用过程中的关键问题。
19. Specially designed for electronic ballast and energy-save lamp.
    专为电子节能灯，镇流器设计制造。
20. At turnouts, ballast distribution shall take into consideration the additional volume needed for the turnout.
    道岔上的道碴分配应考虑到道岔需要的额外容量。
21. Voltage provided to a ballast by a power line or power supply.
    由电源或输电线输入到包括镇流器的电压。
22. D A ballast with one class insulation system shall not represent a ballast with a different class insulation system.
    具有某级绝缘系统的镇流器不能代表具有不同级别绝缘系统的镇流器。
23. Electronic ballast, Energy saving lamp.
    电子镇流器、节能灯。
24. Fluorescent and HID lamps used for a temperature test shall be rated for the ballast involved.
    用作温度测试的日光灯和HID灯应当与镇流器匹配。
25. Function test and automatic controller test for ballast pump.
    压载泵效用试验和自动控制装置试验。
26. The significance of ballast to lighting quality and efficiency?
    镇流器对照明质量和照明能效的意义？
27. The ballast tanks are complete and have been installed.
    镇流器坦克是完整的和已安装的。
28. A bag filled with sand; used as a weapon or to build walls or as ballast.
    盛沙的袋子；用作武器或建设墙或作为压舱物。
29. Tank Linings and pipe Coatings: Ballast and potable water tanks; Bilges, wet voids and drainage pipes.
    储罐衬里和管道用涂料：压载水舱和饮水舱；舱底、湿空舱和排水管。
30. Installation of ballast and associated payment are not covered in the present supply.
    道碴的铺设和与其相关的费用没有包含在目前的供应中。

noun

1. any heavy material used to stabilize a ship or airship

2. an electrical device for starting and regulating fluorescent and discharge lamps

   Synonym:    light ballast

3. a resistor inserted into a circuit to compensate for changes (as those arising from temperature fluctuations)

   Synonym:    ballast resistorbarretter

4. an attribute that tends to give stability in character and morals

5. coarse gravel laid to form a bed for streets and railroads

verb

1. make steady with a ballast