您要查找的是不是：
- gradient across pulmonic valve 跨肺动脉瓣(压力)阶差
- How many cusps are there supposed to be on this pulmonic valve. 你认为这个肺动脉瓣有多少个瓣叶？
- The most common causes are aortic or pulmonic valve regurgitation. 最常见的原因是主动脉瓣或肺动脉瓣反流。
- Decreased blood flow( eg, in shock) may lower the concentration gradient across the intestinal mucosa and decrease absorption by passive diffusion. 血流量的减少（休克病人）以降低跨肠粘膜的浓度梯度，从而减少被动扩散吸收。
- Although fixed splitting denotes delay in normal closure of the pulmonic valve, paradoxical splitting denotes delayed closure of the aortic valve. 固定分裂表明肺动脉瓣正常关闭的延迟，逆分裂则表明主动脉瓣关闭已经延迟。
- The pressure gradient across the lower esophageal sphincter (lower esophageal pressure-gastric pressure) is the "barrier pressure" resisting reflux. 食道下端括约肌压力梯度（食道下段-胃压力差）是抵抗返流的屏障压。
- Pulmonary valve stenosis is a medical condition in which outflow of blood from the right ventricle of the heart is obstructed at the level of the pulmonic valve. 什么是'肺动脉狭窄-减少了血液供应紧张的肺因为心脏瓣膜的心脏和肺部'?
- Left commissure of pulmonic valve 肺动脉瓣左联合
- Posterior commissure of pulmonic valve 肺动脉瓣后联合
- premature pulmonic valve opening 肺动脉瓣过早开放
- We examined winter temperature gradients across old growth Douglas fir forest edges and compared these to corresponding summer gradients. 自 1 991年 1 0至 1 992年 5月 ,对林缘至原始花旗松林林内的温度 ,进行了连续的实地测量 ,并与相应的夏季温度变化加以比较。
- domed and thickened pulmonic valve 圆及增厚的肺动脉瓣
- He beckoned to me from across the street. 他在马路对面向我招手致意。
- Right commissure of pulmonic valve 肺动脉瓣右联合
- In order not to be late, she cut across the fields. 为了不迟到，她抄近路穿过田野。
- Lightning zigzagged across the sky. 闪电曲折地在天空划过。
- Taking a blind man across the street is a kind act. 扶盲人过马路是一种善良的行为。
- An expression of pain flitted across her face. 她脸上闪过一种痛苦的表情。
- Ferryboats ply across the English Channel. 渡船定期往返于英吉利海峡。
- Is there a right of way across these fields? 人们有权通过这些田地吗？
