So now, this parallel as a circle of radius, well, the radius is less than a because if your vertical is to the North Pole, it will be actually much smaller.
这个平行线是一个有半径的圆,这个半径是小于a的,因为如果这个环越靠近北极点,它的半径实际上会越来越小。
A periodic change in the distribution of pressure between the North Pole and a circle at about 55degree.
在北极点与大约55度N纬圈之间气压分布的周期性变化。
He would twine forming small circle of single one, and then put these small circle respectively in a long piece of bamboo pole, ready to the woods bird.
他将麻绳一根根结成单独的小圆圈,然后把这些小圆圈分别系在一根长竹竿上,准备也到树林中去捕鸟。
The outer circle of the vertical pole is provided with a guiding elongated slot, and the slot base of the guiding elongated slot is processed with two small grooves which are respectively arranged.
立柱的外圆上设有一导 向长槽,在导向长槽的槽底加工有二个分别设置的小凹槽。
The outer circle of the vertical pole is provided with a guiding elongated slot, and the slot base of the guiding elongated slot is processed with two small grooves which are respectively arranged.
立柱的外圆上设有一导 向长槽,在导向长槽的槽底加工有二个分别设置的小凹槽。
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