When using this product, we strongly recommend that you always work in a well-ventilated area, preferably with some form of airextractionsystem.
我们强烈建议您在通风良好处使用本调色液，最好在拥有通风系统处使用。
2
Trace lead in baked food is determined by air-acetylene flame atomic absorption spectrometry (FAAS) with APDC-DDTC-MIBK as the extraction and preconcentration system after cineration process.
Presents general principles and forms for the design and selection of air-conditioning and ventilation system, involving kitchen airextraction and spot fresh air supply systems.