n.
a quarter of the circumference of a circle
同义词：right angle
a quarter of the circumference of a circle
同义词：quarter-circle
any of the four areas into which a plane is divided by two orthogonal coordinate axes
the area enclosed by two perpendicular radii of a circle
a measuring instrument for measuring altitude of heavenly bodies
A two-dimensional nuclear overhauser experiment with pure absorption phase in four quadrants ☆
Comparison of gonioscopy and anterior segment ocular coherence tomography in detecting angle closure in different quadrants of the a...
Device for observation of samples by fluorescence particularly sequentially
The Human Resource Architecture: Toward a Theory of Human Capital Allocation and Development
In Vivo Characterization of Coronary Atherosclerotic Plaque by Use of Optical Coherence Tomography
COSMOS: Three-dimensional Weak Lensing and the Growth of StructureBased on observations with the NASA/ESA Hubble Space Telescope , o...
A Necessity for MAP Kinase Activation in Mammalian Spatial Learning
Decision rules in the perception and categorization of multidimensional stimuli.
Interpreting line drawings of curved objects
An evaluation of spatial information processing in aged rats.
