椭圆形的

Methods:43 patients including 10 with mitral stenosis associated aortic regurgitation, 12 with mixed mitral valve lesions and 21 with mixed mitral valve lesions and combined with aortic regurgitation were studied.MVA determinded by (1) two -dimensional echocardiography with a cross-sectional area in the short-axis view (2DE),(2) pressure half-time using formula of 220/PHT,(3) color Doppler flow imaging with a jet cross-sectional area in the short-axis view with planimetry,(4) CDFI with a color jet width at the mitral valve orifice in the apical four-chamber view and long-axis view, assuming an elliptic mitral orifice, compared with the orifice area of excised mitral valve during mitral valve replacement.

材料与方法∶分别用二维超声(2DE)、压差减半时间、彩色多普勒二尖瓣口血流截面积和椭圆形面积法测定43例风湿性心脏病二尖瓣狭窄拟行人工瓣置换术患者的MVA，其中合并主动脉瓣反流 10例，合并二尖瓣反流 12例， 21例，并与手术标本的实测面积相比较。

A fitting algorithm based on the principle of least square and polar line geometric properties of ellipse is described.

近年来越来越多的实验和数值计算显示，采用椭圆形前缘可以明显改善叶片的气动性能。

Small orchid with two elliptic leaves and a slender raceme of small green flowers; western North America.

长有两片椭圆形叶子的一种小形兰花，有纤细的总状花序；产自北美洲西部。

Filaments free or connate at base; anthers with short, incurved apical appendages; pollinia minute, 4 per pollinarium, erect, globose to ellipsoid, retinaculum minute, translator arm absent.

花丝离生或在基部合生；花药具短，弯曲的顶端附属物；花粉块分钟，4 每pollinarium，直立，球状到椭圆形，retinaculum 分钟，缺席的翻译臂。

Bunch medium to large, shouldered, compact; berry medium in size , roundish oval; color greenish yellow when ripe; at the West the color is bright yellow with light bloom.

束大中型，肩负，结构紧凑，浆果在规模中等，圆形的椭圆形，色黄绿色成熟时，在西方的颜色是用灯光绽放鲜黄色。

Body and wings of samara pubescent; leaf blade lanceolate, oblong, ovate, or elliptic

翅果具短柔毛的身体和翅；披针形的叶片，长圆形，卵形，或椭圆形 9

"Bas-relief egg-and-dart moldings (with alternating oval and pointed forms), and scrollwork such as that found on Ionic capitals and in the running-dog pattern."

浅浮雕蛋箭饰线脚(带有交替的椭圆形及尖形)，还有爱奥尼亚柱头、奔狗模式上所见的涡卷。

The bulges of the external surface of the heating pipe are bar bulges that set equally, they also can be semispherical bulge or subelliptical bulge.

所述加热器管的外表面的凸起为均匀设置的条状凸起，也可为多个半球形凸起以及多个半椭圆形凸起。

The morphological characteristic showed that the colonies were black green and the hyphae were septum, brown, Spore size was 11.07×25.18μm, mostly ellipse, with three septate , two central cells were larger than both terminal cells , brown to dark brown , terminal cells subhyaline to light Brown after cultured on PDA medium at 5d. The DNA sequence of ribosomal ITS of the isolates was found to match 99% with an ITS sequence of Curvularia verruculosus in GenBank.

为致病菌。该菌在PDA培养基上培养5d后，菌落呈墨绿色，菌丝褐色，有隔，分枝，分生孢子平均大小为11.07×25.18μm，褐色至暗褐色，椭圆形，具有3个隔膜，主隔膜明显加粗，中间两细胞较大。rDNA-ITS测序结果与GeneBank中的序列进行同源性比较发现菌株与Curvularia verruculosus的同源性高达99％。

Inflorescences paniculate or corymbose cymes, coetaneous or serotinous; bracts along branches minute, linear or branched; fruit globose or ovoid, rarely ellipsoid, white, blue, or black.

花序圆锥状或伞房状聚伞花序，花叶同放或；沿着分枝小，线形的或分枝的苞片；果球状或卵球形，很少椭圆形，白色，蓝色，或黑色。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。