单词：covariant curve
covariant curve的用法和样例：
例句
- It also introduces the program design, the theologic curve drawing and the structure of the instrument.介绍了仪器中这部分的程序设计和流变曲线的绘制及仪器结构。
- So, we think air pressure change is one of the main factors of aberration of observational daily change curve of tensometer.因此认为气压变化是伸缩仪观测日变曲线畸变的主要因素之一。
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