stratus

n.

（气象）层云；

1. When the stratus is overhead and the sky is low,the hill-tops are hidden.
   层云当空的时候，天空感觉较低，把小山头盖住了。

Stratus Not Altocumulus: A New View of the Yeast Protein Interaction Network
Peruvian Stratus Clouds and the Tropical Pacific Circulation: A Coupled Ocean-Atmosphere GCM Study.
Cloud resolving simulations of Arctic stratus : Part II: Transition-season clouds
Determinants of Normal Retinal Nerve Fiber Layer Thickness Measured by Stratus OCT
Normal Macular Thickness Measurements in Healthy Eyes Using Stratus Optical Coherence Tomography
Reproducibility of retinal nerve fiber thickness measurements using the stratus OCT in normal and glaucomatous eyes.
Comparison of retinal nerve fiber layer thickness measured by Cirrus HD and Stratus optical coherence tomography
Reproducibility of peripapillary retinal nerve fiber thickness measurements with stratus OCT in glaucomatous eyes.
Physical and chemical observations in marine stratus during the 1993 North Atlantic Regional Experiment: Factors controlling cloud d...
Reproducibility of RTVue retinal nerve fiber layer thickness and optic disc measurements and agreement with Stratus optical coherenc...