求翻译：有代表性的几樘进行试安装，提前核实裁割尺寸。玻璃的品种、规格和颜色必须符合设计要求。有气水印、波浪等缺陷的玻璃严禁使用。玻璃质量是什么意思？

Representative of several door frames to try to install, verify in advance the cutting size. Glass varieties, sizes and colors must meet the design requirements. There are gas watermark, wave and other defects of the glass is strictly prohibited. Glass quality

A representative of several topics, to conduct the test Installation CD verify ahead cut size. The varieties, glass and color specifications must conform to the design requirements. There is a gas, such as watermarks, waves of glass prohibiting defects. Glass quality

Has representatively several tang carries on tries to install, verifies ahead of time cuts shears the size.The glass variety, the specification and the color must conform to the design requirement.Flaw and so on angry watermark, wave glass forbid strictly the use.Glass quality

A representative few to try a set of installation, verifying cutting size in advance. Design varieties, specifications and color glass must meet requirements. Air wave glass defects such as watermarks, is not permitted. Glass quality

Representative of several door frames to try to install, verify in advance the cutting size. Glass varieties, sizes and colors must meet the design requirements. There are gas watermark, wave and other defects of the glass is strictly prohibited. Glass quality