It is a new attempt to study mineralization age using fission track method.
应用裂变径迹法研究成矿时代是一新的尝试。
Introduced a kind of new method by means of frequency track method to measure cutting power of woodworking machines.
介绍了一种用频率跟踪法测量木工机床切削功率的新方法。
Introduced a kind of new method by means of frequency track method to measure cutting power of woodworking machines.
介绍了一种用频率跟踪法测量木工机床切削功率的新方法。
应用推荐