set of fork spanners 成套叉形扳手
boundary spanners 边界人员 ; 跨界者 ; 边界管理人员
Spanners and screwdrivers 扳手和螺钉旋具
VED Electric Spanners 电工绝缘扳子
Adjustable spanners 活动扳手
Specification for podger spanners 罗奇板手规范
Specification for railway track spanners 铁路轨道扳手规范
Combination Spanners 两用扳手
The real-time dynamic optical field is needed in both optical tweezers and optical spanner. With the changing of the optical field the optical trap can trapping, moving or rotating the matter.
无论“光镊”还是“光扳手”技术，它们所需光场都应该能够按照要求进行实时变换，使得光场中产生的光陷阱能够对微粒产生辐射压力，从而实现捕获和操纵微粒。
参考来源 - 基于LCD的实时计算全息波面变换系统的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
N-COUNT A spanner is an adjustable metal tool used for tightening or loosening metal nuts of different sizes. 活动扳手 [英国英语]
PHRASE If someone throws a spanner in the works, they prevent something happening smoothly by deliberately causing a problem. 从中搅局 [英国英语]
Do not open the valves with spanners.
不要用扳手打开阀门。
Wrenches (spanners) must not be used if its jaws are sprung, worn or cracked. They may slip off a bolt or nut when you least expect it.
如果扳手(扳钳)的钳夹出现变形、磨损或裂纹，则不宜再使用。它们可能会在您始料未及之时导致螺栓或螺帽滑脱。
The utility model relates to a measuring standard device which is matched with GNJ-50, 250 and 500 type torque calibration instruments and used for checking various torque spanners.
本实用新型涉及一种与GNJ - 50、250、500型扭矩校准仪配套的，用于检定各种扭力扳手的计量标准装置。
词组短语
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