【判断题】开式齿轮传动的主要失效形式是:齿根弯曲疲劳折断,齿面的磨粒磨损。因此对应的设计原则是:按齿根弯曲疲劳强度设计计算,再适当增大模数以考虑齿面磨粒磨损的影响。
【单选题】—I’m surprised more and more people________participate in the morning exercises in the plaza now. —Morning is a time of day.
【判断题】不论何种格式的利润表都是用收入减费用计算利润。
【简答题】设计开式齿轮传动时,应先按齿根弯曲疲劳强度进行计算,确定模数,然后考虑磨损因素,将模数增大10~20,无需校核(__);
【判断题】出纳人员应按期与银行对帐,按日编制银行存款余额调节表,随时处理未达帐项。
【简答题】It is no surprise that more and more people like bicycling, because it is fun, healthy and good. Maybe that's why there are 1.4 billion bicycles and only 400 million cars on roads worldwide today, Bik...