skeleton－fill－in技术是什么？

Mt. Vesuvius is located shore of the Italian Naples bay, the elevation 1277 meters, is the Europe continent only active volcano.

Its crater week length of side 1400 meters, the deep 216 meters, basis diameter 3 kilometer Mt. Vesuvius passes is been called the Soviet masan or the rope masan, its ancient mountainous region edge part presently assumes the semicircle. Encirclement in present crater.

Left chart: The lava is covering a Mt. Vesuvius awl small eruption sends out the warning to the people, bigger, more violent eruption possible following.

Figure to the right: Pang Peicheng behind the ruins Mt. Vesuvius sky storm weather, this city destroys in the A.D. 79 years in the volcanic eruption.

Mt. Vesuvius often erupted in 12,000, the crater always wound around the smog which continuously rose, the sending out quantity of heat is lighting a paper sufficiently. Under the foot of a hill is proliferating the orchard and the vineyard, but