• If current over the rating or over-current due to a load short-circuit flows for a long term, it may cause smoke or fire. Prepare an external safety circuit, such as a fuse. • Build a circuit that turns on the external power supply when the PC main module power supply is ...
A - 1 [DESIGN PRECAUTIONS] DANGER If load current more than the rating or overcurrent due to a short circuit in the load has flowed in the output module for a long time, it may cause a fire and smoke. Provide an external safety device such as a fuse. Design a circuit so that the...
患者,女,38岁。上腹隐痛伴反酸、暖气3个月。查上腹部轻度压痛,大便隐血试验阳性,纤维胃镜见十二指肠壶腹(殊部)部溃疡。问题2:行纤维胃镜检查前,护士应为患者做的准备工作不包括()A.排空大小便B.安慰患者,消除其紧张心理C.嘱患者禁食8小时D.有活动性义齿应取下E.抽尽胃内容