underlayment

英

美

网络  屋面垫层; 屋面衬料; 屋面垫层材料; 衬底; 屋面衬垫材料

COCA.45594

英英释义

noun

• a pad placed under a carpet
  Synonym:carpet padrug padunderlay

双语例句

• A water-resistant saturated felt underlayment is typically rolled out over the sheathing before the shingles are applied.
  在安装瓦片之前，将专门把一层防水的浸油毡垫层辊平在望板上。
• Reinforcing the soft soil base with gravel underlayment
  砂砾垫层加固软土地基实践