base coat的用法和樣例：
例句
- This means that they have a soft, downy undercoat and a harder guard coat.
也就是說他們除了一層柔軟的底層毛以外，還有一層比較厚硬的外層毛。 - Some of the mobilized elements may be reprecipitated at the base of the soil profile.
某些移出的養分可能在土壤剖面底層重新沉澱下來。 - Use this paint as a base before you varnish.
在你上清漆前，先用這種漆作為底漆。 - Subsequent coat Thermo 300 silver, or according to the coating systems of Kansai.
適用下塗厚塗無機富鋅底漆，或參考我司推薦配套。
