自从美索不达米亚和埃及时代以来，玻璃就已经被制造出来了，它只不过是沙子、苏打灰和石灰的混合物。
Glass, which has been made since the time of the Mesopotamians and Egyptians, is little more than a mixture of sand, soda ash and lime.
重要的是要了解和苏打石灰之间的硼硅酸盐玻璃的区别。
It is important to understand the difference between borosilicate and soda lime glass.
多年以来，流传着这样的一种观点：加入苏打灰和除去石灰可以获得更容易加工的玻璃。
Over the years, the opinion has spread that adding soda ash and removing lime results in easier working glass.
多年以来，流传着这样的一种观点：加入苏打灰和除去石灰可以获得更容易加工的玻璃。
Over the years, the opinion has spread that adding soda ash and removing lime results in easier working glass.
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