The 60-c3 is an external circulationtype constant temperature water tank provided with a thermo-module.
C3是提供加热模块的外部循环形式的温度固定水箱。
2
Some superiorities of using down hole hammer counter circulationtype continuous coring (sampling) method in gold ore exploration are expounded in this paper.
文中阐述了在金矿勘探中应用潜孔锤反循环连续取心（样）的优越性；
3
Inthis paper, the function, operating principle, cooling effect and benefit of the prop in evaporative cooling system of natural circulationtype reheating furnace are discussed as well.