spanner

n.

扳手，扳子；用指距测量的人；

复数：spanners

torque spanner扭力扳手，力矩扳手

1. I needed a special spanner.
   我需要一把特殊的扳手。
2. He threw a spanner into works by never investing this project.
   他不再投资这项工程而破坏了整个计划。

Geometric Spanner Networks
Spanner: Google's globally-distributed database
$(1 + epsilon,beta)$-Spanner Constructions for General Graphs
Throwing a spanner in the works: antibiotics and the translation apparatus
$(1 + \epsilon,\beta)$-Spanner Constructions for General Graphs
Power efficient and sparse spanner for wireless ad hoc networks
Distributed construction of a planar spanner and routing for ad hoc wireless networks
Localized construction of bounded degree and planar spanner for wireless ad hoc networks
Localized construction of bounded degree and planar spanner for wireless ad hoc networks
Mechanical equivalence of spin and orbital angular momentum of light: an optical spanner