天然玻璃

一种天然玻璃，由熔化的火山岩快速冷却形成。

A kind of natural glass produced when molten lava cools very rapidly .

近年来，天然玻璃作为宝石材料在市场的销售开始慢慢增多。

In the past few years , natural glass is increasing as one kind of gemstone materials in the market .

几种天然玻璃的氧平均体积

Volumes per oxygen of some natural glasses

由于天然玻璃和人造玻璃的主要成分都是二氧化硅，且都是无内部固定结构的材料，使得二者难以区别。

For the main component of natural glass and man-made glass is silicon dioxide , and both of them have no defined crystal structure , it is hard to distinguish from each other .

天然气玻璃熔窑设计探讨

The design of glass melting furnace Combusting natural gas

天然酸性火山玻璃的折射率与岩石化学成分的关系

The Relation Between the Refraction and Rock-Chemical Components for Natural Acidic Volcanic Glass

26m~2天然气高效节能玻璃管池窑的设计与实践

Design and Practice The 26 Efficient and Energy-Saving Glass Furnace hat Produces The Glass Tube

碱活性指数可作为活性或非活性天然和人工质玻璃集料的判据。

For natural and artificial glass aggregates , the " Alkali Reactive Index " can be used to differentiate the reactive from the non reactive aggregates .

密度低、来源丰富的天然植物纤维代替玻璃纤维、无机填料，作为树脂基复合材料的增强材料正越来越多地用于汽车等交通工具。

Taking the place of glass fiber or inorganic filler as reinforcing material of resin , the lightweight natural plant fibers are using more and more for transport vehicle parts .