The change in pressure can be recorded by means of a pen arm on a rotating drum. 氣壓變化可以藉助在轉動的鐘筒上移動的筆記錄下來。
So, we think air pressure change is one of the main factors of aberration of observational daily change curve of tensometer. 因此認為氣壓變化是伸縮儀觀測日變曲線畸變的主要因素之一。
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