The new developing carbon fiber compound flexible coiled rod overcome the shortcoming of ordinary steel rod, can meet the need of low permeability oilfield production.
新开发研制的碳纤维复合柔性连续抽油杆克服了普通钢杆的缺点，能够满足低渗油田小泵深抽技术的要求。
In this paper, three mixed steel-fiber concrete and ordinary concrete specimen were tested for revealing their early thermal behavior and strain caused by hydrated heat.
本文通过三种不同钢纤维掺量的钢纤维混凝土早期水化热温度和变形实测，得到了不同掺量钢纤维混凝土的水化热温度及温度变形的时程线。
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