The one-way, single-step vertical shiplift with counterweight is one of the most important structures in the Three Gorges project.
单级全平衡重垂直升船机是三峡工程的最重要的组成部分之一。
The one-way, single-step vertical shiplift with counterweight is one of the most important structures in the Three Gorges project.
单级全平衡重垂直升船机是三峡工程的最重要的组成部分之一。
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