Today, surgeons often prefer plastics such as polypropylene.
今天，外科医生们通常选择聚丙烯这类塑料。
Synthesize the high mark sub - material, match an etc. such as the plastics, coating, gum.
合成高分子材料，如塑料、涂料、胶合剂等。
Synthesize the high mark sub - material, match an etc. such as the plastics, coating, gum.
合成高分子材料，如塑料、涂料、胶合剂等。
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