进入磨机的粗料压碎于辊和钢环之间。
Coarse material entering the mill is crushed between the ring and rollers.
在几十年的研究中，卡西尼陆续在土星最明亮星环之间的所谓“卡西尼环缝”一带发现了土星的4颗卫星。
Over decades of study, Cassini went on to discover four of Saturn's moons along with the so-called Cassini Division between Saturn's brightest rings.
在套管或衬管与周围的水泥环之间所形成的小间隙，这些间隙是由于在固井期间或固井之后温度或压力的变化所致。
A small gap that can form between the casing or liner and the surrounding cement sheath, most commonly formed by variations in temperature or pressure during or after the cementing process.
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