Less than 10,000 sq km of that area remain, though progress is slow due to poor weather conditions.
The problem with this approach was that it was prohibitively slow due to the large size of the video buffer.
Historically the acquisition speed of this method is slow due to the time required to mechanically sweep the time delay.
In the deep sea environment it comes from, life is slow due to lack of nutrients and solar energy.
But economic growth has been slow due to very weak private investment, only partly offset by large government deficit spending.
After ballooning in over several years, sales have recently begun to slow due to negative publicity and questions about safety.
The monastery is 30 miles from Lhasa, but the going is slow due to a bumpy road and mountain switchbacks.
Commercial adoption of AM has been slow due to factors such as quality control, production rates, and repeatability.
Adoption has been slow due to fears of mechanical failure secondary to this alteration in mechanical properties.
This method is very flexible for rapid prototyping, but is comparatively slow due to the sequential machining.
Nick Budden, the chief executive, said: "We expect any recovery of the property sales market to be slow due to low current levels of stock".
