Compared with with other part, the area near overflow point could be more easily destructed. Therefore, the filter protection to the downstream of the primary dam should be done early.
各种工况下的渗流溢出点附近相对于整个坝体其它部位更易于发生渗透破坏，故应做好初期坝下游坝坡的反滤保护。
The characteristic of breaker failure protection for ac Filter (ACF) sub-bank is presented.
分析了交流滤波器小组开关失灵保护的特点。
The trees also provide the building with a visual filter and natural protection from the heat of the sun, creating perfectly adapted Spaces within for working and reading in well-lit conditions.
树木也为建筑提供视觉过滤，保护建筑免受太阳热量的侵袭，在内部创造完美适合的空间，用于在光线良好的条件下工作和阅读。
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