selective uptake

The elemental enrichment factors were also calculated to differentiate selective uptake of elements by the plant .

植物残体中不同元素的生物富集系数有差异，反映了植物吸收元素的选择性。

A selective uptake and retention of the drug in tumor tissue was obvious 24 hours after its injection .

与其它组织（肺肝除外）相比，具有相对选择性吸收和潴留作用，这种作用在24小时后较为明显。

These suggest that Ca ~ ( 2 + ) is involved in the regulation of selective uptake of Na ~ + / K ~ + through K ~ + channel in root cells under higher Na ~ + concentration , leading to adaptation of plants to salt stress .

说明Ca2+参与了质膜上K+通道对K+/Na+的选择性吸收的调节，从而使植物适应盐胁迫。

The clinical use of paclitaxel is limited by its low solubility , poor pharmacokinetic characteristics , and the lack of selective tumor uptake .

但是，紫杉醇在实际化疗应用中却受到诸如溶解度低、药动学特性不良以及肿瘤对其摄取缺乏选择性等原因的限制。