专家们早就认识到，这个令人沮丧的问题是由多种原因造成的。
Experts have long recognized that this discouraging problem has multiple causes.
结果表明，氨水储槽的泄漏由多种原因造成，残余应力过大是主要因素。
It was conduded that large residual stress was the main cause of ammonia leakage.
这一情况可能是由多种原因造成的，这些原因可能是无意的，也可能是故意的。
This can happen for a variety of reasons, and these reasons can be unintended as well as deliberate.
软岩巷道的变形破坏由多种原因造成，受软岩自身强度较低、采动压力、地下水、支护方式、支护质量等综合性因素影响。
The deformed destruction of soft rock is led by many reasons, such as the low intensity itself, the exploiting press, underground water, support and the quality of support etc.
对此，美国奥杜邦环保协会纽约分会公民科学处处长约翰.劳登表示“这种情况之前曾发生过一次，造成这种现象是由多种原因综合作用而成。
“It’s only happened once before. It’s a confluence of circumstances that come together to cause this,” said John Rowden, citizen science director at the Audubon Society’s New York chapter.
研究表明，农村女性劳动力转移滞后是由多种因素造成的，其中最重要的原因就是农村女性人力资本存量偏低。
Research shows that the rural female labor force's lag in migration is caused by many factors. One of the most important reasons is the low stock of human capital in rural women.
据专家统计，造成室内环境污染的原因有很多种，其中由室内装饰材料和家具所造成的装修污染占很大比例。
According to experts, there are many reasons for indoor environmental pollution, which is caused by indoor decoration materials and furniture decoration pollution accounted for a large proportion of.
导致航空发动机性能衰退的形式有很多种，其中由积垢沉淀因素造成的叶片粗糙度增大是具有代表性的原因。
There are many factors leading to the aero-engine performance declination, especially roughness increase caused by the lamina fouling is a typical reason.
导致航空发动机性能衰退的形式有很多种，其中由积垢沉淀因素造成的叶片粗糙度增大是具有代表性的原因。
There are many factors leading to the aero-engine performance declination, especially roughness increase caused by the lamina fouling is a typical reason.
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