对瓣的

Seating - Buna N disc to metal seating assures positive seal for shutting off the gas to burner in the event of high water temperature conditions.

阀座 -丁腈橡胶阀瓣对金属阀座，确保在出现过高水情况下关闭通向燃烧头的燃气时的密封性。

The reasonable use of digitalis has a very good curative effect in the treatment of patients with serious mitral stenosis and atrial fibrillation.

只要适量合理使用洋地黄类强心剂对二尖瓣严重狭窄合并心房纤颤的患者有着很好的疗效。

Combined transfer of the galea aponeurotica and temporal fascia was used to repair severe infra-orbital soft tissue depression and ectropion of lower lid in 6 cases.

经过对颞区解剖分析，采用带颞浅动脉顶支的帽状腱膜、颞膜轴型瓣加游离植皮的方法，修复眶下组织重度凹陷及下睑外翻6例。

METHODS Left ventricular ejective fraction, regurgitant velocity and regurgitant direction were examined by color Doppler echocardiography in 151 patients with medium mitral regurgitation. The results of LVEF, regurgitant velocity and regurgitanting gradient were compared between patients with and without murmur grope.

随机选择151例经超声心动图检查，显示有中度及中度以上二尖瓣返流的患者，根据彩色多普勒血流显像分别测定LVEF、返流速度等超声参数，比较其在杂音组及无杂音组间统计学差异，分析其对听诊的可能影响。

Objective To observe the histological changes ot epimysium-reconstructed epineurium and investigate its role in the regeneration of the injured nerves.

目的观察带蒂肌外膜瓣转位重建神经外膜后的组织学改变及其对损伤段神经再生的作用。

The implementation of hardware interface and software of the testing control and display system are illustrated .

阐述了雷达线性调频信号的有关理论，分析了测试软件对线性调频信号匹配滤波及其距离旁瓣抑制滤波的原理，并给出了实测数据与分析。

The photosynthetic pigment contents, chlorophyll a/b rate, free proline, soluble sugar and malondialdehyde contents in the leaves of Hemerocallis fulva var. florepleno which was under different light intensities during their growth were studied.

对重瓣大花萱草进行不同程度遮荫处理，研究了其生长过程中叶片中的光合色素含量、叶绿素a/b值、游离脯氨酸、可溶性糖及丙二醛含量的变化及其生理特性。

Methods 21 cases of craniopharyngoima in suprasellar region were resected by trans-supraorbital approach, the diameter of tumors varied from 3.0 to 6.5cm; partial cystic tumor in 13 and solid tumor in 8. Skin incision was made in eyebrow, the hemicycle bone flap was approximately 2.5cm×3.0cm, tumor was dissected in I,II,III spaces and trans-endplate.

对21例位于鞍上，肿瘤上下径为3.0～6.5cm的颅咽管瘤患者(部分囊性变者13例，完全实性者8例)，作眉弓内弧形小切口，在眶上铣开一为2.5cm×3cm的半圆形小骨瓣，术中根据肿瘤位置，从I、II、III间隙和终板入路切除肿瘤。

Clavicle bone is suitable for implant as its density,and for the repair of mandibular defect as its shape.The accurate data of personalized clavicle shape and bone density can be measured through preoperative imaging.It can be used for design of mandibular defects repair and / or tooth plant in the same period with pedicle sternocleidomastoid muscle.

锁骨的骨密度适合做种植牙修复，锁骨的外形适合做下颌骨缺损修复，术前对影像学资料进行丈量能取得个性化的锁骨外形及骨密度的较为正确的数据，对临床上利用带血供的胸锁乳突肌锁骨瓣修复下颌骨缺损和/或同期种植牙修复具有一定的指导意义。

Methods: The motion of parasternal papillary muscle anterior wall, inferior wall, posterior wall, and lateral wall were detected by 2DE at short axis view of left ventricle before PTCA, 3 d and 1-3 months after PTCA in 33 cases of patients with coronary heart disease, who received PTCA+stent at selected time. Peak systolic velocity of subendocardial, subepicardial and middle layer myocardium, transmural velocity difference of the same segments and Outer lateral mitral valve annulus were also detected at apical 4 chamber view by pulsed wave tissue Doppler imaging.

对33例择期行PTCA+支架术的冠心病患者用HP5500型超声诊断仪，于PTCA术前及术后3d、1-3个月对胸骨旁左心室乳头肌短轴切面的前间壁、下壁、后壁、侧壁行二维超声心动图(2DE)检测各节段的室壁运动情况，用脉冲组织多普勒成像检测上述各节段的内、外膜下及中层心肌的收缩期峰值速度，内外膜下心肌的收缩速度差及心尖四腔观二尖瓣外侧环的收缩期峰值速度。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。