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 head of cute Mickey.
理由5：按键是蓝绿色的、圆胖的、水晶透明的，更重要的是，左右的功能键和导航键都是在一起的，构成米奇的脑袋。
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。
Temperature control measures for side wall concrete construction in the sixth lock head of the permanent navigation locks at the Three Gorges Project during hot season are briefly given in the paper.
简述了三峡工程永久船闸六闸首边墙混凝土高温季节施工的温控措施。
Temperature control measures for side wall concrete construction in the sixth lock head of the permanent navigation locks at the Three Gorges Project during hot season are briefly given in the paper.
简述了三峡工程永久船闸六闸首边墙混凝土高温季节施工的温控措施。
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