English translation for "三层问题"

three-layer problem

Similar Words：

"三层涂敷颗粒" English translation, "三层涂抹" English translation, "三层瓦楞纸板" English translation, "三层完井" English translation, "三层文件盘" English translation, "三层卧铺" English translation, "三层稀土成像系统" English translation, "三层消球差镜" English translation, "三层斜坡振动筛" English translation, "三层斜纹" English translation