1·They then coated the spheres with a sticky polymer before heating them again.
然后在再次加热之前给聚苯乙烯球表层涂上一层粘性聚合体。
2·Manufactured from coated nylon treated to prevent stains and water absorption.
从涂上一层的尼龙制造，对待避免污染而且加水给吸收。
3·Caster plate is made of 6mm (3 gage) steel and is zinc plated lacquer coated.
投手碟子是用6毫米(3个规格)钢做成的而且是锌镀金的瓷漆涂上一层的。
4·After coated, there will obviously feel the upward tension on both sides of the cheek.
涂上一层后，会有明显感觉两边脸颊在向上拉紧。