invar

基本解释

Automatic Measurement System of Invar Rods Based on Image Processing[J].
引用該論文 Xu Xinhua;Wang Qing;Qian Zheng;Zhang Shexian.
Geodetic levelling should be done with staves in which the divisions are marked on a strip of invar.
大地水準測量必須使用分劃刻在因瓦帶上的水準標尺。
If the pendulum is made of invar,the bob does not rise or fall much. So the clock keeps good time in summer and winter.
如果用不脹鋼做鍾擺，擺鎚陞降的距離就很小，這樣無論夏季或鼕季，鍾都走得很準。
There is a material which we call invar. It is made of different metals. Invar never expands or contracts much, and so it is useful in clocks.
有一種我們稱之爲不脹鋼的材料，它是由不同的金屬制成的，膨脹和收縮均很少。因此用在鍾裡是很有用的。
A very low linear expansion coefficient sample carrier made from invar, ensures that temperature change has no effect on the sample position.
由不脹鋼制成非常低膨脹系數的樣品載台保証溫度變化對樣品的位置沒有影響。