Reason 5: Has blue-green, rotund, and semi-crystal keys. What's more, the left and right function keys and the navigation key combined form the headof cute Mickey.
In the navigation buildings of high water head, the cost of ship lift is generally lower than ship lock.
在高水头的通航建筑物中，升船机的造价通常低于船闸。
3
Temperature control measures for side wall concrete construction in the sixth lock headof the permanent navigation locks at the Three Gorges Project during hot season are briefly given in the paper.