Formulation and Evaluation of a Shale Inhibitive Agent SIAT
泥页岩抑制剂SIAT的研制与评价
This source has some traits such as high conversion efficiency and high precision and siat llity of output frequency .
该电源具有转换效率高，输出频率的精度和稳定度高的特点。
I saw a shadow pass the siat .
我看到有影子从门外闪过。
siat