At the same time, the classical fault-tolerant techniques are all proven to be too costly to be used in non-critical applications.
同时，经典的容错技术都被证明是太贵，可用于非关键应用。
2
In the meantime, it is also proven that the non transversal intersection mentioned above exactly corresponds to the static bifurcation point, i. e. the critical point of voltage collapse.
Personally speaking, If they are proven with medical check as non-virus carriers and get quarantined a period of time after arriving in China. We sincerely welcome them to go back home,.