短語詞組短語glass composition envelope 玻璃封套Glass Sealed Envelope 玻璃密封glass s envelope 玻璃封裝glass envelope type 玻殼型式;型式Double Glass Envelope 雙玻璃絲包線A glass envelope 玻璃信封;第二十二課lesson a glass envelope 玻璃信封evacuated glass envelope 真空玻璃管lamp with glass envelope 玻殼燈 返回 glass envelope