It was important to select proper operation conditions to improve the heat efficiency of drier and lower the energy consumption.

说明合理选择操作条件对提高干燥器热效率、降低能耗是非常重要的。

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Proper anesthesia depth is one of the key factors to guarantee a patient's safety and create good conditions for the operation.

适当的麻醉深度是保证患者生命安全、创造良好手术条件的关键因素之一。

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Under the conditions of proper design and correct operation, the sieved tray was of high efficiency, tow pressure drop and high processing capacity.

在设计适当、操作正确的前提下，网孔塔板具有效率高、压力降小、处理能力大等特点。

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