To reduce the raw material cost by every possible means under the premise of assuring the glassmarble quality has become a subject for glass technologists to explore with intensive efforts.
在保证中碱玻璃球的质量的前提下，千方百计降低原料的成本，成为玻璃工艺技术人员下大力气去探索的课题。
2
The majestic staircase is also made of marble, set with elaborate mosaics of glass, stone, and mother-of-pearl.
宏伟的阶梯也是由镶嵌着精美马赛克玻璃，石头和珠母层大理石铺设而成的。
3
Howell didn't have much to do with the building or its magnificent lobby of hammered silver and black marble that shone like devilish, blinding glass.