求翻译：目前中国有一些大公司生产的产品有许多是高端的产品，在许多重要位置和重要场合使用了大量的中国产的LED屏。但由于不同的厂家采用不同的原材料、部件及不同的工艺控制水平，以及质量管理和技术水平的差异，加之市场竞争的影响，屏的质量和可靠性存在较大的差异，显示屏价格差距也较大。即使是一些有一定规模的公司的产品也可能出现问题。即使在个别重要场合安装的LED户外屏也出现了较严重的问题。如下面这个北京机场T3航站楼外的大型LED屏出现的情况。是什么意思？

China now has some big company products many of which are high-end products, and uses a lot of made in China, led screen in many important positions and important occasions. However, due to different manufacturers using different raw materials, components and different levels of process control, and

At present, China has some of the larger companies have many of the products is a high-end products in a number of important positions, and important occasions used a lot of Chinese LED display. However, due to the different manufacturers have different raw materials, components, and different level

At present China has the product which some big companies produce to have many is Gao Duan the product, has used the LED screen in many important positions and the important situation which massive China produces.But because the different factory uses the different raw material, the part and the dif