英语释义

• Scottish chemist and physicist noted for his work in cryogenics and his invention of the Dewar flask (1842-1923)

• vacuum flask that holds liquid air or helium for scientific experiments

片语

Robert DewarRobert Berriedale Keith Dewar (born June 21, 1945, Oxford, United Kingdom) is an American computer scientist.

Mini Dewar微型金属杜瓦瓶

Research Dewar实验杜瓦

dewar bottle真空瓶；杜瓦瓶

flask Dewar杜而瓶

Dewar formula杜瓦式

Paul Dewar国会议员德瓦尔

Donald Dewar务大臣唐纳德·杜瓦

Dewar jar杜而瓶

Dewar r杜瓦

英汉例句

• To put it simply, Dewar explains: 「These animals go swimming, and they take the water along with them.

  简单的说，Dewar解释说：「这些动物游泳，同时携带水。

• Dewar invented a sort of strawberry shortcake snack for Hostess; yellow sponge cake with strawberries crammed inside.

  Dewar的面包师为女性顾客发明了一种草莓娃娃零食：一种内部填满草莓的黄色松糕蛋糕。

• An analysis of the mechanism of heat transfer in Dewar flask is made and shows that heat radiation in given case is not negligible.

  本文对杜瓦瓶的传热机制进行了定量分析，指出热辐射传热在杜瓦瓶情形下是不可忽略的。

• This system was designed for wiring on Dewar with fix tension.

  本文采用的系统是为了实现对杜瓦瓶芯柱进行等张力布线设计的。

• A conventional thermos isn't good enough, but a Dewar flask, invented in the 19th century, holds cryogenic fluids like liquid nitrogen at temperatures of -196oc (-321of) for months at a time.

  传统的恒温器不够好，但是19世纪发明的Dewar flask一次能保持像液态氮这样的温度在- 1960华氏摄氏度的低温液体好几个月之久。

• Dewar finally decided screw it, leave out the fruit completely and squirt some cheap cream filling in there.

  Dewar最终决定改变这一切，放弃使用水果而填充进一些便宜的奶油。

• 」Zooplankton on the whole are pretty small,「 Dewar concedes. 」Because of that, there are some legitimate concerns about how effectively they can mix [layers of] water."

  “浮游动物在整体上来说是非常小的」，Dewar承认，「因此，关于他们如何有效地搅拌不同层次的海水的意见是合理的。」

• How it got here: Scottish chemist and physicist Sir James Dewar invented the vacuum flask Iin 1892 as a way to keep liquid nitrogen from warming up and turning into gas in his lab.

  它是如何问世的：1982年苏格兰化学家和物理学家JamesDewar爵士发明了保温瓶用以防止实验室中的液氮升温而气化。

• A suitable device was used instead of the original Dewar flask in the phosphorescence attachment of the spectrophotometer.

  在磷光附件中使用了适当的装置以代替原有的杜瓦氏瓶。

• According to the requirements of the customers and the scale, multi gas feed modes such as gas supplied by pipeline, LNG Dewar Bottle and CNG Steel Bottle will be provided.

  根据客户需求及规模，公司可向用户提供管道供气、LNG杜瓦瓶以及CNG钢瓶等多种供气模式。

• Compared with the prior Dewar container, the conduction-cooled superconducting magnet Dewar is simpler, has small conduction heat leakage, and has the advantages of easy installation and disassembly;

  本发 明比传统杜瓦容器简单，传导漏热小，而且具有便于安装和拆卸的优点；

• Dewar is an important component of the astronomical observation.

  摘要杜瓦瓶是天文观测中重要的终端设备部件。

• A device for determining molar mass with freezing point depression was improved, which consists of the Dewar bottle, sample container, Beckmann thermometer, and motor stirrer.

  介绍一个改进的凝固点下降法测定摩尔质量实验装置，它由保温瓶、凝固点杯、贝克曼温度计、电动搅拌器等几部分构成。

• Therefore, the cyclic stress caused by repeatedly cooling and heating during the usage of non-magnetic Dewar is one of the important reasons that causes the decrease of vacuum performance.

  因此，无磁杜瓦在使用过程中反复冷却及复温所产生的循环应力载荷，是导致其真空性能下降的一个重要原因。