quad

n.

四倍；空铅；（大学的）四周有建筑物围绕的方院；四胞胎之一

vt.

在…填补空铅；

复数：quads

THREE NATURAL ZIRCON STANDARDS FOR U‐TH‐PB, LU‐HF, TRACE ELEMENT AND REE ANALYSES
Quad trees a data structure for retrieval on composite keys
Miniquad—A general computer programme for the computation of formation constants from potentiometric data
Quad trees a data structure for retrieval on composite keys
Simultaneous determinations of U–Pb age, Hf isotopes and trace element compositions of zircon by excimer laser-ablation quadrupole ...
An effective way to represent quadtrees
Bacterial endophytes in agricultural crops
Bacterial endophytes in cotton: location and interaction with other pl...
Identification of Uncommon Plant Metabolites Based on Calculation of Elemental Compositions Using Gas Chromatography and Quadrupole ...
Spectral surface quadrangulation