“套筒”造句

植株树干用铝制套筒包着.
Aluminum sleeves were placed around the stems.

套筒必须将预计中积雪最高处以上的茎干包裹着.
The sleeves must cover stems to a point above the greatest expected snow accumulation.

此外, 在 长期 的使用以后套筒冠的固位力可能有显著地下降.
Additionally, a marked decrease in retention after long - term use is described.

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