A beam of light that can pull is counterintuitive to physicists, who have spent centuries studying light's ability to push.
由于已经花了几个世纪研究光的推动能力，物理学家们的直觉意识到会有一种光束能够拉动物体。
But turning this push into a pull required more sophisticated optics -in Grier's case, a solenoid beam.
但是将这种推力转化为一种拉力需要更加复杂的光学，比如，在格里尔的设计中，是通过一种螺线管状光束。
The override action occurs when a slight pull toward the driver on the switch lever providers high beam headlights regardless of the amount of light on the sensor-amplifier.
轻轻朝着驾驶员的方向拉动开关控制杆这一动作，就可以使前照灯远光灯泡点亮，而不用顾及灯的数量。
A new method about pull sensing with temperature self-compensated based on loop thin-wall section beam is proposed.
提出一种基于圆环形薄壁截面梁的温度自补偿的拉力传感方法。
The calculation on relative parameters for strain-pull controlling of T-style beam bridge prestress, can provide reference for construction in future.
对T型梁桥梁板预应力张拉控制相关参数的计算，可为今后的施工提供参考。
As not to impede his study, he used a rope to tie his hair to the house beam so that if he fell asleep it would pull on his hair and he would immediately come awake.
为了不影响学习，他用绳子把自己的头发绑在房梁上，一打盹儿绳子就会拉住头发，整个人马上就清醒了。
The utility model adopts the combination of steel structure, which mainly composed of a base, a post, slanted struts, a cross beam, a backboard frame, pull rods, support rods, etc.
该篮球架采用钢结构组合，主要由基座、立柱、斜撑、横梁、篮板框架、拉杆、撑杆等组成。
IO-Link, compact housing, small beam diameter, push-pull output, IP 65.
紧凑的外壳，小光束直径，推动式输出，IP 65。
IO-Link, compact housing, small beam diameter, push-pull output, IP 65.
紧凑的外壳，小光束直径，推动式输出，IP 65。
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