The distillation conditions including overhead pressure, reflux ratio for the recovery of 1,2- propylene glycol were studied.

本文还研究了精馏的一些操作条件对1，2-丙二醇精制过程的影响（塔顶压力、回流比等）。

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So the incentive for the consumer to avoid those overhead costs has increased quite noticeably.The retail sector is therefore under pressure to reduce those costs.

消费者对于避免这些管理成本的敏感性也增加的非常显著，零售业也因此处在试图减少这种成本的压力之下。

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FIG. 2 Internal Cylinder Configuration, top. Overhead view of low pressure liquid withdraw, bottom left. Overhead view of liquid and high pressure gas with-draw, bottom right.

图2上面是钢瓶的内部结构，左下是低压液体提取装置的俯视图，右下是液体和高压气体提取装置的俯视图。

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Phil Jagielka's deep right-wing cross had Macho backtracking, forcing Stanislav Varga into a panicky, overhead clearance under pressure from Wayne Allison.

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This also applies to the cost structure of the practice as such advisors prefer to keep low overhead and not experience the pressure of having to cover a larger bill and therefore maintain high overhead.

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The apparel retailers have come under immense pressure to reduce overhead costs as the industry faces high commodity costs.

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