A.0.7% B.0.8% C.0.9% D.1.0%
A.質(zhì)地柔軟,配戴舒適 B.直徑較大,不易脫落 C.可塑性好,簡(jiǎn)化了驗(yàn)配技術(shù) D.極性強(qiáng),容易吸附沉淀物
A.0.5~0.6 B.0.7~0.8 C.0.8~1.0 D.1.5~2.0