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。
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。
应用推荐