w meson是什么意思

用法例句

The W ion implantation was carried out using a metal vapor vacuum arc (Mevva) ion source, with a mean energy of 105 keV under a current density of 22 μA/cm2 and at doses of 3×1017 cm2和5×1017 cm2.

采用金属蒸气真空弧离子源,在奥氏体不锈钢上注入金属W离子,研究了W离子注入对奥氏体不锈钢微动磨损性能的影响。

Detection of W-spermatozoon in the Sex-reversed Female Chicken by Polymerase Chain Reaction;

用PCR法检测性反转母鸡W精子的产生