rare base

A new type of Y base heavy rare earth modificator was developed.

研制了一种钇基重稀土变质剂.

Chordomas are rare tumors of notochordal tissue remnants and most frequently affect the sacrum and base.

脊索瘤是来自脊索遗迹的罕见肿瘤,主要侵犯荐椎及颅底.

Synthesis and · O_2~-Scavenging Bioactivity of Rare Earth Complexes with N-( Salicylaldehyde) Asparagine Schiff Base

水杨醛缩天冬酰胺Schiff碱稀土配合物的合成与抗·O2~-生物活性

Studies on Synthesis, Characterization and Scavenging Effect on O_~-2 of Asparagine Schiff Base and its Rare Earth Complexes

天冬酰胺Schiff碱稀土配合物的合成、表征与抗O2~-性能

Self fluxing iron base alloys containing rare earths have been prepared. The self fluxing performance of these alloys in oxygen acetylene flame spray welding has been observed in detail.

制备了含稀土的铁基自熔合金并考察了这种自熔合金在氧－乙炔火焰喷焊过程中的自熔性。