这些心理技巧的运用证实已提升了球员的表现层次。
These techniques have been approved to enhance the level of performance.
以往的实证研究暗示，节点具有明确几何位置的网络，如计算机互联网、电力网络等，不表现层次性。
Previous studies suggested the absence of hierarchical structure in geographical networks, such as the Internet, the electrical power grids, and so on.
特别是在观光梯轿厢与客梯轿厢及其相关部件的设计制造方面，实现了从技术解决方案到空间艺术表现层次的飞跃。
Especially design of manufacture to panorama lift car, passenger lift car, related parts fulfill a leap from technical solution to display level of space art.
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