air hole


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air hole

In the foundation of a house, an opening that provides ventilation for a crawl space.
References in periodicals archive ?
In the analysis of the present square-lattice PCF structures, we use [LAMBDA] as the hole-to-hole spacing in horizontal or vertical direction with d as the diameters of the air holes.
Figure 7 shows the numerical aperture increases as the voltage amplifying when the input frequency is constant and the radius of the air hole is fixed.
In conclusion, we have analyzed a bending DC-DCF with two fiber cores separated by one air hole in the cross-section.
If the toes are not substantial enough, the chicken can be attached to a small mound of clay "dirt" for stability, remembering that the air hole must be clear to the outside.
Each BearGram[R] gift includes a customized Vermont Teddy Bear accompanied by a personalized greeting card and free gourmet chocolate, all packaged in a colorful gift box with an air hole.
1: Schematic diagram of the cross section of the designed PCF with a gold filled air hole
Prevent the pond from freezing over by floating a tennis ball on the surface to allow an air hole for fish to breathe.
Their only air hole is slowly freezing over so he broadcS asts a news piece in the hope that the networks might pick up the story.
The animals' one and only air hole is slowly freezing over so Adam hurriedly broadcasts a news piece in the hope that the networks might pick up the story.
During filming on the ice, he discovers the trapped whales whose only air hole is freezing over and he broadcasts a news piece.
The rat had gnawed at the air hole in the side of the bin to make a way in.
You could see it clearly, blowing from its air hole.