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他表示,透明水泥已经申请专利,目前还没有决定是否向世界范围内推广使用。
The cement is currently under patent and it is not yet decided if it would be made available worldwide, he added.
youdao
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他表示,透明水泥已经申请专利,目前还没有决定是否向世界范围内推广使用。
The cement is currently under patent and it is not yet decided if it would be made available worldwide, he added.
youdao