1) liquid nitrogen cooled screen
液氮制冷屏
1.
Based on this, a liquid nitrogen cooled screen device is developed to control the radiation degradation of deuterium lamp.
在此基础上,研制了液氮制冷屏装置来抑制氘灯衰减。
2) liquid-nitrogen refrigerating
液氮制冷
1.
A series of Er 3+ /Yb 3+ co-doped BaF_2 powders with the same compositions were prepared at different sintering temperatures, and the samples were cooled by liquid-nitrogen refrigerating and air-cooling, respectively.
采用液氮制冷和空冷两种冷却方式制备了不同烧结温度的系列相同配方Er3+/Yb3+共掺杂BaF2粉末。
3) Liquid-nitrogen cooled shroud
液氮冷屏蔽罩
4) nitrogen system
液氮制冷系统
1.
The plane tube is an important component in nitrogen system.
介绍了大型空间环境模拟器液氮制冷系统中杜瓦管的作用、结构、使用情况及特点 ,并根据现场调试、维护等自身因素限制 ,设计了一种比较简便实用的测试真空试件。
5) liquid nitrogen cooled detector
液氮制冷探测器
6) condensation by liquid nitrogen
液氮冷凝
1.
A simple and convenient method for extracting plant volatiles—condensation by liquid nitrogen;
植物挥发性物质提取的一种简易方法——液氮冷凝法
补充资料：液氮
分子式：N2
分子量：28.01
CAS号：7727-37-9
性质：熔点-210°C。沸点-196°C。
分子量：28.01
CAS号：7727-37-9
性质：熔点-210°C。沸点-196°C。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条