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航海六分仪
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航海六分仪
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marine sextant
航海六分仪
手持式,用以测量天体高度或物标夹角的精密光学仪器,因其分度的弧长约为圆周长的1/6而得名,是古老的用以测定船舶位置的航海仪器。
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nested mating design
nested PCR-DGGE
nested PCR-RFLP
nested plots
nested polygon
nested polymerase chain reaction
nested query optimization
nested radical
nested radical constant
nested recursion
nested root
nested sampling
nested set model
nested sets
nested space
nested space-filling design
nested square
nested transaction
nested X-ray telescope
N. E. Steenrod
N. E. Steenrod (1910—1971)
nest form boron compound
nesting
nesting electrochemical machining
nesting [of Fermi surfaces]
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