Countersunk rivet symbol. Use in conjunction with other rivet ends.埋头铆钉符号. 与其他铆钉端点结合使用.Side view of raised countersunk slotted screw with adjustable thread length.螺纹长度可调整的半埋头一字槽螺钉的侧面图.Side view of countersunk posidriv sc...
波林∙克拉克总警司Chief Supt Pauline Clark波林发明的装置既是最机巧也是最具有生物属性的机器.The devices Pauline at once the most mechanicalthe most biological of machines.波林·弗里德曼的笔名艾比盖尔取自《圣经·旧约》.Pauline Friedman took the name Abigail from the Christian B...
Objective To observe susceptibility of Streptococcus mutans biofilms to erythromycin.目的观察变形链球菌生物膜对红霉素敏感性.Recent studies suggested that erythromycin may be effective in prophylaxis against pertussis in exposed, susceptibl...