cold frame

n.

防霜害的苗床罩子，阳畦；

复数：cold frames

Cold frame
Cold frame
Cold frame
Collapsible cold frame
Combination greenhouse and cold frame apparatus
Automatic Control Mathematical Model of Pure Bending Cold-frame Bender
An Improvement on Automatic Control Detecting Means for NC Cold Frame Bender
Cold Frame Nursery of Stevia Seed and Agronomic Techniques
Two new methods for the in-situ measurement of the overall thermal transmittance of cold frame lightweight steel-framed walls
Structure Analysis for the Racks of Cold Frame Bender Based on Analytical Method and Finite Element Method
Cold frame : a novel
Consider a cold frame
Hot Bed & Cold Frame Construction and Use