英语语法分析

Morphological studies indicated that, in general, it needed 10 to 15 minutes for the stylet to reach the phloem and feed.

形态研究表明，粉虱的口计一般需10～15分钟达到初皮都取食。

Objective To evaluate the efficacy and safety of the multi-stylet method for bedside blind placement of nasoenteral feeding tubes.

目的评价多导丝置管法床边盲插鼻肠喂养管的有效性、安全性。

The present invention is directed to a stylet device to allow easy advancement of a tube through complex passages of body cavities.

本发明涉及一种便于管子前进穿过体腔的复杂通道的管心针装置。