ballast
英 ['bæləst]
美['bæləst]
- n. 压舱物，[建] 压载物；道渣，碎石
- vt. 给…装压舱物；给…铺道渣
词态变化
复数: ballasts;
助记提示
1. from Middle English bar "bare" (see bare; in this case "mere") + last "a load, burden".
2. 谐音“白拉石头”。这些石头白拉的，不为卖钱而是为了保持车船的稳定的----（船等）压舱物。
2. 谐音“白拉石头”。这些石头白拉的，不为卖钱而是为了保持车船的稳定的----（船等）压舱物。
中文词源
ballast 压舱物
bal, 词源同bare, 仅仅，字母l,r 音变。last, 古词义，重担。
英英释意
- 1. any heavy material used to stabilize a ship or airship
- 2. coarse gravel laid to form a bed for streets and railroads
- 3. an attribute that tends to give stability in character and morals; something that steadies the mind or feelings
- 4. a resistor inserted into a circuit to compensate for changes (as those arising from temperature fluctuations)
- 5. an electrical device for starting and regulating fluorescent and discharge lamps
英文词源
- ballast
- ballast: [16] Originally, ballast appears to have meant literally ‘bare load’ – that is, a load carried by a ship simply for the sake of its weight, and without any commercial value. English probably acquired it, via Low German, from a Scandinavian language; Old Swedish and Old Danish had not only ballast but also barlast, which appears to betray the word’s component parts: bar, related to English bare, and last ‘burden’ (Old English had hlæst ‘burden’, related to lade, which survived into the 20th century as a measure of weight for various commodities).
=> bare, lade - ballast (n.)
- "heavy material used to steady a ship," 1520s, from Middle English bar "bare" (see bare; in this case "mere") + last "a load, burden," or borrowed from identical terms in North Sea Germanic and Scandinavian (compare Old Danish barlast, 14c.). "Mere" because not carried for commercial purposes. Dutch balg-last "ballast," literally "belly-load," is a folk-etymology corruption.
词组搭配
in ballast
(of a ship) laden only with ballast
（船）只装有压舱物
实用场景例句
- A novel UHF electronic ballast with dimming feature is proposed in this paper.
- 本文提出了一种新型可调光的超高频电子镇流器.
期刊摘选
- A ship without a ballast is unstable.
- 一艘船如果没有压舱物,便不会稳定.
期刊摘选
- Chapter IV gives a detail analysis of the magnetic components design consideration used in the ballast.
- 基于此,在本文的第四章中,对电子镇流器中的磁元件的设计进行了详细的分析研究,以减小磁元件的损耗.
期刊摘选
- 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.
期刊摘选
- 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.
辞典例句
- A ship without a ballast is unstable an will not go straight.
- 一艘船如果没有压仓物是不稳定的,和不能够向目的地一直前进.
期刊摘选
- This artificial aging equipment is designed to ensure the quality of the HID ballast.
- 为了保证氙灯安定器的出厂质量,设计了该老化台.
期刊摘选
- This thesis focuses on pollution & protection and ballast monitoring system of APM VLCC.
- 本文的研究内容是针对APMVLCC的防污监控系统和压载监控系统这两个部分.
期刊摘选
- Purpose: Fluorescent lamp, electronic ballast, electronic transformer.
- 用途: 用于节能灯 、 电子镇流器 、 电子变压器.
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- A capacitor shall have a capacitance rating within 5 percent of the ballast manufacturer's specification.
- 电容器容量差异应在镇流器厂家规格的5%范围内.
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- Ballast is ued by the original binding compont from USA, Germany, and Japan, excellent quality of the world.
- 安定器采用美国 、 德国和日本等原装进口元件, 世界优秀品质.
期刊摘选
- A ship without a ballast is unstable and will not go straight.
- 一艘船如果没有压舱物,便不会稳定,不能朝着目的地一直前进.
期刊摘选
- The ship was furnished with ballast.
- 船上装了压舱物.
辞典例句
- 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.
期刊摘选
- 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.
- 后来当船上的货物 、 压舱物 、 弹药以及400个人轰的一声滑到急剧倾斜的船体左舷一侧的时候, 岸上观看的人们听到了雷鸣般的轰隆声.
《用法词典》
- As a coating in water tanks, ballast tanks and similar areas.
- 用于涂布淡水舱 、 压载舱等部位.
期刊摘选
- We can trust that company; the partners are in ballast all right.
- 我们可以信任那家公司, 其合伙人都很可靠.
《简明英汉词典》
- Generally, track structure consists of track, rail pad, sleeper and ballast.
- 轨道结构一般包括轨道 、 轨道扣件 、 枕木、碎石垫层.
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- This luminaire consists of lamp body and ballast box.
- 本灯具由灯体和镇流器箱组成.
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- 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.
辞典例句
- The ballast may be thrown out to make the balloon go higher.
- 沙袋可以抛掉以使气球飞得更高.
辞典例句
- Familiar with ballast or power supply manufacturing process would be preferred.
- 有整流器或电源制造经验的优先考虑.
期刊摘选
- He has got no ballast whatever.
- 他这个人一点也不沉着.
《简明英汉词典》
- Therefore the development of the circuit of lamp , namely ballast has become an important research point.
- 因此,与之配套的电子镇流器的开发研制也成为了研究热点.
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- Using Dimmable Electronic Ballast for Fluorescent lamp in Theater Project.
- 运用日光灯之可调光电子安定器于剧场计划.
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