quaternary

n.

四，四个一组；

adj.

第四组中的组成部分，四进制的；

复数：quaternaries

quaternary ammonium[石油]季铵；[生物]四级铵

quaternary ammonium salt季铵盐

quaternary period第四纪

quaternary system四进制，四元系统

quaternary geology第四纪地质学

quaternary structure四级结构

quaternary ammonium compound季铵化合物

1. The Quaternary sediments are largely undeformed.
   第四纪的沉积物大部分未变形。
2. Industries based on brainwork or knowledge are called the quaternary industry.
   以脑力劳动或知识为基础的产业被称为第四产业。

Quaternary Ammonium and Tertiary Sulfonium Compounds in Higher Plants
Late-Quaternary Vegetation Dynamics in North America: Scaling from Taxa to Biomes
Standard Tertiary and Quaternary calcareous nannoplankton zonation
Quaternary ligand binding to aromatic residues in the active-site gorge of acetylcholinesterase.
Superconductivity in the quaternary intermetallic compounds LnNi 2 B 2 C
Range shift and adaptive response to Quaternary climate change
MODERN ANALOGS IN QUATERNARY PALEOECOLOGY: Here Today, Gone Yesterday, Gone Tomorrow?
Neotropical seasonally dry forests and quaternary vegetation changes.
Superconductivity in the iron-based F-doped layered quaternary compound Nd[O1 − x Fx]FeAs
Structural and Electrochemical Characterization of Binary, Ternary, and Quaternary Platinum Alloy Catalysts for Methanol Electro-oxi...