“knot”的概念、定义、翻译、参考文献-科学参考

单词	knot
释义	knot [nät] ^{COMPUTER SCIENCE} See <<deadlock>> ^MATERIALS A scar on lumber marking a place where a branch grew out of the tree truck. ^MATHEMATICS In the general case, a knot consists of an embedding of an n-dimensional sphere in an (n+2)-dimensional sphere; classically, it is an interlaced closed curve, homeomorphic to a circle. ^{ORGANIC CHEMISTRY} A chiral structure in which rings containing 50 or more members have a knotlike configuration. ^PHYSICS A speed unit of 1 nautical mile (1.852 kilometers) per hour, equal to approximately 0.51444 meters per second.
随便看	differentiator diffferential ionization chamber diffluence diffracted wave diffraction diffractional pulse-height discriminator diffraction analysis diffraction grating diffraction instrument diffraction-limited diffraction loss diffraction mottle diffraction pattern diffraction propagation diffraction ring diffraction scattering diffraction spectrum diffraction symmetry diffraction velocimeter diffraction zone diffractometer diffractometry diffuse aurora diffuse-cutting filter diffused-alloy transistor

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