误差传感策略是实现主动结构声学控制的关键的一环。
An error sensor strategy is a key step in implementing an active structural acoustic control (ASAC).
在英语语言教与学的过程中我们发现,除这两种结构外,英语被动意义表达的结构或形式颇为丰富,不论主动结构还是被动结构都可用来表达被动意义。
But we ve discovered besides these two types, there are other constructions also expressing the passive meaning, no matter active forms or passive forms in the teaching and learning of English.
传统出版与发行渠道的瓶颈和成本结构将被排除,而且先前被动的消费者将变成作者、主动合作者和内容创作者。
The bottlenecks and cost structure of conventional publishing and distribution channels are removed, and previously passive consumers become authors, active collaborators, and content creators.
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