- 推荐网络例句
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Many examples of such headframe have been built and have provided good service.
许多矿井都建有这种类型井架，大都生产情况良好。
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Based on thorough survey of raw silk spot market, the design and
年，在调研现货市场的基础上，初步完成了生丝
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Key words:filariasis; microfilaria; diethylcarbamazine; source of infection; longitudinal surveillance; transectional surveillance
以消灭传染源为主导的综合防治策略尤其采用全民普服海群生"药盐"措施是实现消除丝虫病的关键。
Don't
stop moving...