| 释义 |
safety lamp
safety lampn. A miner's lamp with a protective wire gauze surrounding the flame to prevent ignition of flammable gases.safety lamp n (Mining & Quarrying) an oil-burning miner's lamp in which the flame is surrounded by a metal gauze to prevent it from igniting combustible gas. Also called: Davy lamp safe′ty lamp`
n. a miner's lamp in which the flame is protected by wire gauze to prevent the ignition of explosive gases. [1810–20] Thesaurus| Noun | 1. |  safety lamp - an oil lamp that will not ignite flammable gases (methane)Davy lampkerosene lamp, kerosine lamp, oil lamp - a lamp that burns oil (as kerosine) for light |
Translationssafe1 (seif) adjective1. (negative unsafe) protected, or free (from danger etc). The children are safe from danger in the garden. 安全的 安全的2. providing good protection. You should keep your money in a safe place. 保險的 保险的3. unharmed. The missing child has been found safe and well. 平安的，無損的 平安的，无损的 4. not likely to cause harm. These pills are safe for children. 無害的 无害的5. (of a person) reliable. a safe driver; He's a very fast driver but he's safe enough. 可靠的 可靠的ˈsafeness noun 安然無恙 安全，无损 ˈsafely adverb without harm or risk. He got home safely. 平安地 平安地ˈsafety noun the state of being safe. I worry about the children's safety on these busy roads; a place of safety; (also adjective) safety goggles; safety helmet. 安全 安全ˈsafeguard noun anything that gives security or protection. a safeguard against burglary. 保全措施 保护措施 verb to protect. Put a good lock on your door to safeguard your property. 保護 保护ˈsafety-belt noun a fixed belt in a car or aircraft used to keep a passenger from being thrown out of the seat in an accident, crash etc. 安全帶 安全带safety lamp a type of lamp used in mines that does not set fire to any inflammable gases there. (礦坑內使用，不會使可燃氣體著火的)安全燈 （矿工的）安全灯 ˈsafety measures noun pluralThey took safety measures to prevent another accident 安全措施 安全措施，保险措施 ˈsafety-pin noun a pin that has a cover over its point when it is closed. 安全別針 安全别针safety valve a valve eg on a pressure cooker that opens if the pressure of the steam in it becomes too great. 安全閥，活瓣， 活塞 安全阀be on the safe side to avoid risk or danger. I'll lock the door just to be on the safe side. 不冒任何風險的 不冒险，为求保险 safe and sound unharmed. He returned safe and sound. 安然無恙 安然无恙safety lamp
safety lamp, oil lamp designed for safe use in mines and other places where flammable gases such as firedamp (see dampdamp,
in mining, any mixture of gases in an underground mine, especially oxygen-deficient or noxious gases. The term damp probably is derived from the German dampf, meaning fog or vapor. Several distinct types of damp are recognized.
..... Click the link for more information. ) may be present. Its invention (c.1816) is usually attributed to Sir Humphry Davy. The Davy lamp is based upon the principle that to be ignited a substance must first be heated to its kindling temperature and that if such heating is prevented combustion will not occur. The flame in the lamp is surrounded by a metal-gauze screen that distributes the heat over a large area so that the maximum temperature of the screen is below the ignition temperature of the flammable gas mixture (e.g., firedamp). Improvements devised by K. G. Bischof and others include special locks to prevent the accidental opening of the lamp and devices to permit the lamp to be held upside down without danger. If firedamp or related gas mixtures are present in a mine, the Davy lamp flame burns higher and with a blue halo; the height of the flame and color of the halo indicate the amount of combustible gas in the air. If the mine air is deficient in oxygen, the lamp flame is extinguished. Coal miners often placed the safety lamp close to the ground to detect gases, e.g., carbon dioxide, that are denser than air and thus collect in poorly ventilated depressions in the mine. Other gas-detecting devices are now more commonly used, e.g., the methanometer; as a light source the Davy lamp has been replaced by electric lighting.safety lamp[′sāf·tē ‚lamp] (mining engineering) In coal mining, a lamp that is relatively safe to use in atmospheres which may contain flammable gas. MedicalSeesafesafety lamp
Synonyms for safety lampnoun an oil lamp that will not ignite flammable gases (methane)SynonymsRelated Words- kerosene lamp
- kerosine lamp
- oil lamp
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