GBF管 GBF tube
GBF tube GBF管
GBF-FAN 俊业达
GBF薄壁管 GBF thin-walled tube ; GBF thin-wall pipe
GBF thin-walled tube GBF薄壁管
gbf flue system gbf烟道系统
薄壁GBF管 thin-wall GBF pipe
gbf塑料管 gbf plastic pipe
The actual application of the GBF pipe in the engineering makes it get important breakthrough and revolution in the design of the floor.
通过在工程中的实际应用，使得GBF管在楼盖设计中有了重大突破与变革。
Objective: To study the relation between gingival blood flow (GBF), blood current velocity (BCV), blood concentration (BC) in gingival and periodontal diseases.
目的：探讨牙龈血流量(GBF)、血流速度(BCV)和血浓度(BC)与牙周病的关系。
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