Lagging

ជាទម្រង់ Gerund ឬ Present Participle នៃ lag

1.

The clothing (esp., an outer, wooden covering), as of a steam cylinder, applied to prevent the radiation of heat; a covering of lags; -- called also deading and cleading.

2.

Lags, collectively; narrow planks extending from one rib to another in the centering of arches.