The attractive force between the dimer and the needle drew the lower atom of the dimer upward, causing the dimer to shift from one position to the other.

二聚体与探针之间的引力将二聚体中较低原子向上方拉动，使二聚体从一种姿态切换至另一种。

youdao

Adopts double idler wheels and needle feed materials at the same time, strong slope climbing force, small change of needle.

采用滚轮及针送同步送科，爬坡力强，针距变化小，针位极稳固。

youdao

The fillister in both sides of the needle-bar can protect and carry fabrics and reduce puncture force.

在针杆两旁的凹槽可以保护和带引纤维，及降低穿刺力。

youdao

But if I'm accelerating, the force exerted by the spring and therefore, the needle the weighing machine reads is m.

但是如果我在加速运动,那么弹簧的弹力,也就是称重机上指针的读数就是 m

耶鲁公开课 - 基础物理课程节选