Synchronized movements of the six-way valve and DIV made it possible to establish a simple flow path of the sample and a continuous liquid flow through the column.
六通阀和DIV的同步协调运行使得建立一个简单的样品流路和连续流体经过分离柱的系统成为可能。
In some sectors certain operating conditions (such as the petroleum sector, pipeline), not allowed to use the path contraction of the valve.
在某些部门的某些工作条件下(如石油部门的输油管线)，不允许采用通径收缩的阀门。
When the control valve to change flow direction, due to changes in flow path will cause changes in value.
当调节阀改变流动方向时，由于流路的变化会引起值变化。
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