... 钻头直径 bit diameter 钻头中心线 center line of bit 钻头轴承 bit bearing ...
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·2,447,543篇论文数据，部分数据来源于NoteExpress
Only Hou Jia Tang community health service center on the allocation of the 60 a current vaccine, has completed the 12-bit front-line health care workers a flow of vaccinations.
仅侯家塘社区卫生服务中心就分配了60份甲流疫苗，目前已完成12位一线医护人员的甲流疫苗接种。
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