So far, there is no simple and easy formula to calculate time of filling gas into the vacuum container.
真空容器充气时间的计算 ，至今尚无简易方便的计算公式。
So far, there is no a simple and easy equation to calculate time of filling gas into the blast furnace feeder.
关于高炉加料罐的充气时间，至今尚无简易方便的计算公式。
In this time of filling with competitions and pressures, we must learn to make ourselves happy.
当身处竞争和压力的时候，我们必须学着让自己幸福。
In this time of filling with competitions and pressures, we must learn to make ourselves happy.
当身处竞争和压力的时候，我们必须学着让自己幸福。
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