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。
This paper deals with method of soldering thermoelectric cooler with metal dewar of infrared detector.
本文论述了四级微型半导体致冷器与红外探测器金属杜瓦瓶的钎焊方法。
An axial symmetrical model is set up for the sealing structure of the bulkhead plate for a columniform dewar.
建立了针对柱形真空杜瓦容器端盖密封结构的轴对称模型。
After liquid-helium test we find that helium permeability is an important factor for FRP liquid-helium dewar.
液氦试验发现:氦气渗透是影响玻璃钢液氦杜瓦性能的重要因素,应予以重视。
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。
The applications of cryogenic adhesive bonding technology in SQUID non - magnetic Dewar and other fields are introduced.
介绍了低温粘接技术在SQUID 无磁杜瓦及其它领域中的应用。
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。
The structure feature and fabrication technology of a special-shaped LHe dewar for superconducting unipolar motor are described.
本文叙述了超导单极电机液氦异型杜瓦容器的结构特点和制造工艺。
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。
According to the test results and the analyses, the modified design has been proposed for the inside insulation structure of LHe dewar.
根据试验结果和分析研究,提出了异型杜瓦容器内部绝热结构的改进设计。
In this paper, we give the mechanical structure of our newly designed mini-dewar which can work as a reference to those who may concern.
本文介绍了我们新设计的一套小型化半导体制冷杜瓦,给出了机械设计的要点,可供有兴趣的同行参考。
According to package characteristics of long linear HgCdTe IRFPA detector, difficulties of the metal split micro dewar manufacture are discussed in the paper.
针对长线列碲镉汞红外焦平面探测器封装的特点,文章讨论了分置式微型杜瓦研制的难点。
Well, back in the 1930s, a baker named James A. Dewar invented a sort of strawberry shortcake snack for Hostess; yellow sponge cake with strawberries crammed inside.
好吧,回到1930年,一个叫做Jamesa . 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。
"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。”
The calculation shows that the pressure drops and the temperature decreases, but the gas rate increases from liquid helium main dewar to superconducting magnet dewar.
计算结果表明,氦工质从液氦主杜瓦加注到磁体杜瓦的过程中,其压力和温度不断降低,而 含 气量不断增加。
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。
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。
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。
For checking the thermal performance and establishing the design of experimental system of the vehicle liquid hydrogen Dewar, a series of experiments of evaporation rate have been done.
为检测低温容器的热性能及车载液氢杜瓦试验系统的设计要求,进行了一系列液氮蒸发率试验。
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。
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。
This paper describes the design of the Dewal for 30t pulse magnet and the calculation result for transfering heat. The LN2 Dewar is in two sections, so the installation of the magnet is convenient.
该文叙述了30万高斯脉冲磁体杜瓦的设计及传热、漏热计算结果,LN2杜瓦的设计特点是做成两截的,这样装卸磁体方便。
In this article, a dewar for this superconducting magnet system is mainly described and experimental results about boil-off rate of the LHe under the condition of rotation and vibration is presented.
本文将主要描述该系统的杜瓦部分,并且给出在旋转和振动条件下的液氦挥发实验结果。
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;
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;
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