| 单词 |
saddleback board |
| 释义 |
DictionarySeethresholdsaddleback board
threshold1. A strip fastened to the floor beneath a door, usually required to cover the joint where two types of floor material meet; may provide weather protection at exterior doors. Also See doorsill. 2. In illumination engineering, the value of physical stimulus which permits an object to be seen a specified percentage of the time with specified accuracy.FinancialSeeThreshold |
| 随便看 |
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