second triad

英 美
  • [化] 轻铂组金属; 轻铂三素组(指钌铑钯)

second triad的相关资料：

临近单词

second tap second second order viscous effect second-level intelligence second and third generation second-time-around echo Second specialized students second-trimester abortion second industry of forestry second class grade chemical second premolars extraction second-harmonic detecting
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