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单词
rank of coal
释义
rank of coal
美
英
un.
煤的品级
网络
煤种;煤级
英汉
网络释义
un.
1.
煤的品级
1.
煤种
英文文献之二--曹华丽 ... swirl burner 旋流燃烧器
Rank of coal
煤种
Flame temperature 火焰温度 ...
combust.hit.edu.cn
2.
煤级
(12)
煤级
(
rank of coal
)。表示煤化程度深浅的等级。
blog.sina.com.cn
例句
释义:
煤的品级,煤种,煤级
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更新时间:2026/9/9 10:40:53