If you look at the vector head-on, you see a dot.
如果看到一个矢量指向你,你看到的是一个点。
Head meal meal, and a long beak of a dot on the look out on the water.
脑袋一顿一顿的,长嘴一上一下地在水面打点。
Stare at the black dot, then move your head forward and back …what you will find?
看着看点,前后移动你的头,你会发现什么?
While dot punching, blue annular marks are printed at the positions of the survey dots by a coloring head under the action of a spring.
冲点的同时涂色头依靠弹簧的作用在测量点处印上蓝色圆环标记。
While dot punching, blue annular marks are printed at the positions of the survey dots by a coloring head under the action of a spring.
冲点的同时涂色头依靠弹簧的作用在测量点处印上蓝色圆环标记。
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