Objective: To illustrate the treatment of malignant pericardial effusion by subxiphoid percutaneous pericardial pigtail catheter drainage and intrapericardial chemotherapy as a safe, effective and practical method.
目的:阐明经剑突下穿刺猪尾导管心包引流并腔内化疗治疗恶性心包积液的有效性、安全性和实用性。
Stern planes are usually used to provide enough stability of motion of submersible vehi - cles,but some study has shown that a stern ring-wing or duct will sometimes reduce the static sta - bility of submersible hull.
过去在鱼雷型回转体上加尾导管的操纵性模型试验研究表明,尾导管使回转体的静稳定性显著降低,而DARPA的SUBOFF模型试验结果却显示,潜艇类回转体(主体)加尾导管(尾附件)对回转体的静稳定性没有不利的影响,而且还提高了回转体的运动稳定性。