But new technologies contract millions of birds at once.

但新技术可以同时监控数百万只鸟。

Technology contract transactions also doubled to exceed 2.2 trillion yuan in 2019.

技术市场合同成交额翻了一番，2019年超过2.2万亿元。

So just how much was this technology contract worth?

那么这个技术合同价值多少呢？

Bjorn Linder is the chairman of GoalControl, the German-based company that won the goal line technology contract for this year's Confederations Cup.

比约恩·林德（Bjorn Linder）是GoalControl公司董事长，这家总部在德国的公司赢得了今年联合会杯门线技术的合同。