Impact abrasive wear behavior of electroless Ni-P coating was researched by means of single-pass pendulum scratching test characterized by impact loading.
利用单摆划痕法的冲击加载特性,研究了N i - P化学镀层的冲击磨粒磨损性能。
The experiment of using graphic teaching method to teach volleyball's pass to girl undergraduates of non-P. E major of Grade 2002 of Fujian Normal University.
对福建师范大学公共体育课2002级本科女生班排球垫球教学进行图示教学法的实验尝试。
Thee experiment of using graphic teaching method to teach volleyball's pass to girl undergraduates of non-P. E major of Grade 2002 of Fujian Normal University.
对福建师范大学公共体育课2002级本科女生班排球垫球教学进行图示教学法的实验尝试。
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