| 摘要 |
A shielding apparatus for electromagnetic testing comprises a platform, a lid, a driving unit, a pulley system, and a counterbalance. The platform is for placing an electronic device to be tested. The lid is for covering the platform to define a closed space. The driving unit is for lifting and lowering the lid. The counterbalance connected to the lid via the pulley system is for partly or substantially counterbalancing a weight of the lid.
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