"Going forward, China-US relations will face new complexities and uncertain factors..
He said: "The global economic recovery still faces many unstable and uncertain factors.
Such assessment includes many uncertain factors including soil properties, internal pressure, ocean metadata and others.
The precise timing, he said, would depend on uncertain factors such as the pace of China's economic growth, rate of urbanisation and level of scientific development.
There exist a great amount of uncertain factors in actual engineering.
The successful operation of mass burn municipal incinerators for solid waste management involves many uncertain factors.
"I think there is a lot of volatility right now because of all these uncertain factors we have," he said.
There are many uncertain factors in traffic accidents, it is necessary to study the influence of these uncertain factors to improve the accuracy and confidence of accident reconstruction results.
In order to involve these uncertain factors in analytical model, they have been expressed as the convex variables.
A comprehensive characterization of associated uncertain factors is made and all subsystem models are built for uncertainty propagation.
The surface subsidence induced by mining is a complex problem, which is related with many complex and uncertain factors.
