康明斯KTA-19G2柴油机中所使用的电磁转速传感器在安装时,拧入到顶紧飞轮齿圈后,需退回() ["1/2~3/4圈","3/4~1圈","1/2~1圈","1~2圈"]
经气的所起与所归是指()。 ["A、气街","B、标本","C、根结","D、交会穴","E、四海"]
康明斯KTA-19G2柴油机安装滤清器罐时,当拧紧到密封垫和安装座接触时,需再继续拧进() ["1/2~3/4圈","1/2圈","3/4圈","1圈"]
电动机采用星形-三角形启动,这种方法适用于运行时是三角形接法的电动机,其启动电流是直接启动的()。 ["1/2","1/3","1/4","1/5"]
标志是指经脉腧穴分布的()。 ["A、上下对应关系","B、前后对应关系","C、左右交叉关系","D、表里络属关系","E、范围和规律"]
如何正确使用离合器?