Scientists say there could be tens of millions of smaller particles, such as bolts or chunks of frozen engine coolant, that cannot be discerned from Earth.
科学家说，空间中可能有数以千万计更小的颗粒，不能从地球上识别，比如螺栓、或冻结的发动机冷却剂的小块。
Flush and replace the engine coolant.
清洗和更换引擎冷却剂。
In addition, some Suggestions on the quality and adoption of automotive engine coolant are proposed.
此外，对汽车发动机冷却液的质量及使用提出了建议。
In addition, some Suggestions on the quality and adoption of automotive engine coolant are proposed.
此外，对汽车发动机冷却液的质量及使用提出了建议。
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