水柱

I need to know the department can pump water vacuum created there is a limit, the absolute vacuum suction when the water-way is about 10 meters high, and water pumps can not establish an absolute vacuum.

要知道水泵吸水口处能建立的真空度是有限度的，绝对真空时的吸程约为10米水柱高，而水泵不可能建立绝对的真空。

Which they found was caused by a small waterspout shooting down into a pool from the roof of the cave.

后来他们发现这是由山洞顶部的一个小孔里喷出的水柱跌落到水潭中发出的声音。

Which they found was caused by a small waterspout

后来他们一个小水柱

In this part of the cave, they could hear an insistent booming sound which they found was caused by a small waterspout shooting down into a pool from the roof of the cave.

在这儿，他们可以听见一种连续不断的轰鸣声。后来他们发现这是由山洞顶部的一个小孔里喷出的水柱跌落到水潭中发出的声音。

In this part of the cave, they could hear an insistent booming soundwhich they found was caused by a small waterspout shooting down into a pool from the roof of the cave.

在这儿，他们可以听见一种连续不断的轰鸣声。后来他们发现这是由山洞顶部的一个小孔里喷出的水柱跌落到水潭中发出的声音。

In this part of the cave, they could hear an insistent booming sound which they found caused by a small waterspout shooting down into a pool from the roof of the cave.

在这儿，他们可以听见一种连续不断的轰鸣声，后来他们发现这是由山洞顶部的一个小孔里喷出的水柱跌落到水潭中发出的声音。

They could hear an insistent booming sound which they found was caused by a small waterspout shooting down into a pool from the roof of the cave.

他们可以听见一种连续不断的轰鸣声，后来他们发现这是由山洞顶部的一个小孔里喷出的水柱跌落到水潭中时发出的声音。

Lesson 42: In this part of the cave, they could hear an insistent booming sound which they found was caused by a waterspout shooting down into the pool from the roof of the cave.

在这儿，他们可以听见一种连续不断的轰鸣声。后来他们发现这是由山洞顶部的一个小孔里喷出的水柱跌落到水潭中而发出的声音。

"ENERGY CENTER" is a vortex of earth's forces like a swirl of hot air or a waterspout -- the round royal symbol of universal unity.

能量中心」是地球旋转的动力来源，就像热空气造成的涡流或是龙卷风引起的水柱一样，庄严的象徵著宇宙的和谐。

Insistent : They could hear an insistent booming sound which they found was caused by a small waterspout shooting down into a pool from the roof of the cave.

他们可以听见一种连续不断的轰鸣声。后来他们发现这是由山洞顶部的一个小孔里喷出的水柱跌落到水潭中时发出的声音。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。