Based on the analysis for the reason causing choke, shrinkage and blow hole defects at two 216 bosses of the main plate of the offset machine, the method to eliminate the casting defects by carrying out QC activities was described. 对01胶印机左右大墙板的两个φ216圆台易出现呛火、缩孔和气孔缺陷的原因进行了分析,介绍了开展QC活动消除01胶印机左右大墙板铸造缺陷的方法。
Mixed inoculation method shortened the test time and simplified test procedures. When the number of total bacterial colonies of P 17 and NOX were blow 300 in a plate, the colonies of these two bacteria had different charaters and be easily recognized and counted. 混合接种法缩短了实验时间,简化了操作步骤,当1个平皿中P17和NOX(Spirillumsp.)菌的总菌落数<300时,2种菌的菌落特征典型,易于辨认、计数。
Blow mould design of a new type desk plate 新型桌板吹塑模具的设计