exchangable中文什么意思

[网络] 可更换的

• exchangable ion:    可交换离子

例句与用法

1. exchangable colored front cover with 3 colors red, back and green
   usb介面,快速传输可直接在网上download歌曲
2. these coupons are exchangable at post offices overseas for postage stamps and enable the sender of an international letter to prepay the reply
   这些回邮券可于各海外邮政局兑换邮票，让邮寄信件往海外的寄件人能预付回邮费用。
3. it has high selectivity in adsorpting water, polar molecule or polarizable molecule on account of the existing of mighty coulomb field and polar interaction in the internal of crystal cave of zeolite, the high electric field gradient and the uneven surface caused by the exposure of exchangable cation of equilibrium framework negative charge in framework structures
   由于分子筛晶穴内部有强太原理工大学硕士学位论文摘要大的库仑场和极性作用，再加上骨架中大量平衡骨架负电荷的可交换阳离子的暴露造成的高电场梯度及表面的不均性，使其对水、极性分子及可极化的分子具有高选择的吸附性能。