circulating oil strainer

例句：

1. 1. The circulating oil strainer is essential for maintaining the cleanliness of the engine.
   循环油过滤器对于保持发动机的清洁至关重要。
2. 2. During maintenance, the technicians carefully inspected the circulating oil strainer to ensure it was functioning properly.
   在维护期间，技术人员仔细检查了循环油过滤器，以确保其正常工作。
3. 3. The circulating oil strainer prevents oil from entering the engine when the engine is off, thus reducing maintenancecosts.
   循环油过滤器在发动机关闭时防止油进入发动机，从而降低了维护成本。