When water is pumped out of a chamber below the plate creating negative pressure, the stretchable sensors are pulled down, producing a concave shape.
当水从板下的一个腔中被抽出来产生负压时，可伸缩的传感器被向下拉，形成一个凹形。
2
The Joint IED Defeat Organization said on its website that during testing in Afghanistan beginning in 2008, the system successfully detected pressureplate IEDs before they detonated.
IED联合防御组织在其网站上说，2008年在阿富汗开始的测试中，该系统成功地检测到密封金属IED。
3
Diaphragm spring pressureplate assemblies are widely used in most modern cars.