The north, the first a well-known blue kilns, when the creation of the Northern Song Dynasty, the palace of the Queen's firing device, time is very short, the Numbers are small.

是北方第一个著名的青瓷窑，北宋时创设，烧制御用宫中之器，时间很短，数量也少。

youdao

The EPOC detects and processes real time brain activity patterns (small voltage changes in the brain caused by the firing of neurons) using a device that measures electric activity in the brain.

CNN: The future of gaming is all in the mind