W is attached to a bar, movable vertically around an axis a and suspended by the helical spring F.
摆锤W装在一根杆上，在轴a周围垂直移动，它由螺旋弹簧f所悬挂。
In the Spring Festival couplet at the same time, some people in the door to, the walls, signage pasted greatly small "f" word.
在贴春联的同时，一些人家要在屋门上、墙壁上、门楣上贴上大大小小的“福”字。
In order to obtain the potential sensitivity, a new method using the F-Pinterferometer to measure the displacement of the spring oscillator in the traditional gravimeter is proposed.
为了获得弹簧振子的潜在灵敏度，在此提出了利用F - P干涉仪测量传统重力仪中弹簧振子位移的新方法。
F. Tourists: Oh, I see. Just moment I went to Baotu Spring and Quancheng Square, it's certainly beautiful as you said. Can you introduce some delicious foods in your city?
外国游客：恩，我知道了刚才我还去了趵突泉和泉城广场，确实犹如你说的那样美那么你能再向我介绍一下济南的美食吗？
F. Tourists: Oh, I see. Just moment I went to Baotu Spring and Quancheng Square, it's certainly beautiful as you said. Can you introduce some delicious foods in your city?
外国游客：恩，我知道了刚才我还去了趵突泉和泉城广场，确实犹如你说的那样美那么你能再向我介绍一下济南的美食吗？
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