Following a major shift of epochs, hydrogen began to appear spontaneously near the center of the spatial topology.
随着时代的大变迁，氢开始在靠近拓扑空间的中心自然出现。
2
The current work examined the shift of spatial attention between the upper and lower visual fields and whether the attentional shift is influenced by perceived three-dimensional space.
本实验研究空间选择性注意在上下视野间的转移及其是否受知觉空间的影响。
3
Besides, the tourists not being able to shift their spatial conception could also render the irresponsible behavior.