3a-based Sieves do not co-adsorb the sulfur species .

3a分子筛不共吸附硫类。

This uses special membranes which act as molecular sieves by passing water molecules while holding back the ions , such as sodium and chloride , that make water salty .

其使用一种特殊的过滤膜充当分子过滤器，凭借让水份子通过而留下那些使水变咸的离子，诸如钠和氯化物离子。

Youtube can 't compete with conventional broadcasting at reaching billions of people instantaneously . But it operates outside the control of conventional gatekeepers and editorial sieves .

优酷无法像传统广播那样一瞬间就可以收到数以亿计的观众，但它在传统信息传递者和编辑之外开创了一种全新的方式。

Hand sieves and hand riddles nmb .

手用幼筛及手用粗筛。

Automated crush strength of catalysts or molecular sieves .

催化剂自动压碎强度或分子筛。