# Potential Mass Stream Requirements 1 There is an ongoing operational requirement for efficient energy transfer to accelerate and decelerate the speed of the mass stream (as opposed to just diverting it) on a frequent periodic basis, such as every time it completes a circuit of its levitation system's track 2 The specified mass stream uses discrete pellets or bolts versus a continuous ribbon of material 3 The mass stream uses expansion joints as opposed to being as uniform as possible in它的旅行方向4质量流在电路期间的横向加速度发生重大变化(例如,发夹转弯),而不是经历相对一致的侧向加速度5在服役后经历相对一致的横向加速度5,部分质量流系统的风险是由于灾难性事件而受到损害的风险,例如灾难性事件,例如地震,恐怖袭击,例如地震,恐怖分子,或者涉及飞机,或者涉及飞行的恐怖袭击,或