Abstract: The kinds, structures and catalytic properties of polymer metal catalyst for hydrosilation were reviewed.文摘: 综述了硅氢加成反应中高分子金属催化剂的种类 、 结构及其催化性能....
Exclusion criteria included pachymetry thinner than 400 μ m and aphakic eyes.排除标准包括角膜厚度小于400μm或者无晶体眼.Vitreous and retinal surgery poses a risk to corneal endothelium in the aphakic and pseudophakic eyes.为保护角膜内皮,行玻璃体、视网膜手...
A prolonged drought had necessitated the introduction of water rationing...由于持续干旱，用水需要实行配给了。A prolonged drought had necessitated the introduction of water rationing.由于持续干旱，用水需要实行配给了。Frank was carrying out fuel-system tes...