Figure 1 shows two machines (M1, M2) and a queue (Q) of infinite capacity. There is no buffer stock area between M1 and M2. In this system, if M2 is not empty when M1 finishes its work, M1 is blocked until the current job in M2 is finished, that is, it cannot transmit the finished part to M2 because there is no buffer stock area, and as a result, it cannot start to process a new part. As soon as this finished part can be transmitted to M2, M1 comes out of the blocking state. The arrival times of the 10 parts related to this workshop are 0, 2, 3, 5, 8, 9, 10, 12, 13, 15 minutes respectively. The processing times of these 10 parts in M1 and M2 are respectively "1, 3, 5, 2, 4, 2, 5, 2, 3, 2" and "7, 7, 5, 4, 5, 6, 4, 5, 3, 6". Accordingly, simulate this system until 10 parts are finished. Calculate M1 and M2 utilization rates, M1 blocking percentage, average waiting time in Q, and average time part spends in the system. O M1 Figure 1. Workshop System M2