环保局说，现有的全国各地空气中铅的监测系统都还不够好—足以用来检测空气质量是否达到新的标准，他们将不得不重新设计。
The EPA said that the existing lead in air monitoring systems around the country are not good enough to detect whether air quality is meeting the new standard and they will have to be redesigned.
轮毂X射线检测系统由高频X射线机、X射线图像增强器、轮毂检测专用机械装置，计算机图像处理系统、控制装置和铅防护房组成。
Digital X-ray system for Testing wheels is composed of high frequency X-ray unit, X-ray image intensifier, the special mechanical device, computer image processing system, controller and lead cabinet.
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