One of the main reasons of the failure on main shaft bearing of aviation engine is the damage of cage.

发动机主轴轴承失效的主要形式之一就是保持架的损坏，而保持架损坏的原因主要是保持架的磨损及滚动体对保持架的冲击。

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The mine local ventilation facilities incorporates a number of components, involving many types and reasons of the failure.

矿井局部通风设备系统包含多个组成部分，产生故障的理由和种类较多。

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This paper analyzes all kinds of reasons that influences the service lifetime and capacity of VRLA battery, gives the reasons of the failure of the battery.

介绍了各种影响阀控式密封铅酸蓄电池寿命及容量的因素，分析了其失效的原因，并相应的对电池的维护提出了一些建议。

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They called for priority examination of the reasons for the failure of past efforts by both the LDCs and their development partners to address the critical development problems facing poor countries.

UN: [21 Jul 2000] DEV/2253 : LAYING GROUNDWORK FOR THIRD UN CONFERENCE ON LEAST DEVELOPED COUNTRIES, PREPARATORY COMMITTEE TO MEET AT HEADQUARTERS, 24 - 28 JULY

Gibbs's wife, Tenielle, blamed his escalating drinking problem as one of the reasons for the failure of their marriage after only one year.

BBC: South Africa drop troubled Gibbs

Skocpol explains convincingly that one of the reasons for the failure of cap and trade legislation was that climate reformers focused their energy on Beltway lobbying rather than mobilizing support in local communities.

CNN: How to fight climate change