... 缝带机：belt lacing machine 封泥卷：stemming bag 封火墙：fireproof wall ...
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In addition, the covering was strengthened by use of such materials as fine earth and straw bag, and the length and quality of stemming were guaranteed, controlling the flying rocks effectively.
此外，采用细土、草袋等材料加强覆盖，保证堵塞长度和堵塞质量，有效地控制了飞石。
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