Crumple
发表于 2025-3-30 09:55:22
and properties tailored to fit the needs of aeroplane builders around the world. It seems to have come to a market saturation because of the advent of carbon fibre reinforced polymer matrix composites. Titanium and nickel base super alloys dominate compressor and turbine materials for jet engines.
Asparagus
发表于 2025-3-30 15:46:18
Panagiotis E. Petrakis,Dimitra P. Konstantakopouloupose which can be used under field conditions employs flashlamps to non-invasively measure the kinetics of the reactions of the quinone acceptor complex of photosystem II (PSII, see abbreviations below). Studies in the laboratory on the isolated chloroplasts have led to a detailed understanding of t