The earthbank of terraced field in North Shaanxi Province often collapsed due to irrational design and poor quality of construction.
陕北水平梯田埂坎常因设计不合理或施工质量较差而坍塌。
Problems about hydraulic control butterfly-valve are analyzed, and some irrational design and some improvement method are also put forward.
分析了循环水泵出口液控蝶阀控制回路存在的问题，提出了改进的措施。
Cause analysis of the water cooled wall tube burst focused on irrational points of design, excessive thermal loading, changes of coal category, burner defects and deposits in throttle valves.
着重从锅炉设计不合理、热负荷过高、煤种变化、燃烧器的缺陷及节流阀结垢等方面分析了水冷壁爆管的原因，指出必须进行锅炉改造。
This is a kind of design behavior which is irrational lacks foresight regardless of consumer benefits.
这是一种不顾消费者利益的非理智和短视的设计行为。
This is a kind of design behavior which is irrational lacks foresight regardless of consumer benefits.
这是一种不顾消费者利益的非理智和短视的设计行为。
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