However, after testing and calculation, it was found that the capillary effect produced by the size of the big tree transportation pipeline could not send water to places tens of meters high at all.
您能把受伤的经过告诉我吗?
Listen
Could you tell me what happened to the injury?
经过艰苦的试验,电影拍摄技术逐渐改进、成熟。
Listen
After hard experiments, the film shooting technology gradually improved and matured.