具鞘的

The authers examined the efficacy and safety of ASO,a new self_centering septal occluder consisting of two round disks made of Nitinol wire mesh and linked together by a short connecting waist.68 children with secundum ASD met with the criteria for transcatheter closure received this operation through the two_dimensional echocardiograp...

二十多年来相继研制出了多种经导管房间隔缺损封堵装置，但由于这些装置递送鞘大、操纵繁杂、难以回收及装置的支架断裂、易位和栓塞及术后较高的残余分流率等限制了它们的临床应用［1］。1997问世的Amplatzer房间隔封堵器，因其具自膨性、自

Culm sheaths tardily deciduous, with several marginal white stripes on each side, leathery, glabrous, apex obliquely truncate with unequal, triangular protuberance on each shoulder; auricles unequal, linear-lanceolate, small, usually wrinkled, abaxially hispidulous; oral setae well developed, 5–10 mm, undulate, hispidulous at base; ligule 5–7 mm, margin irregular, dentate, laciniate; blade erect, broadly lanceolate, abaxially glabrous, base nearly 1/2 width of sheath apex.

缓慢的竿箨脱落，叶耳不等长，线状披针形，小，通常起皱，背面；口头的刚毛发育良好，5-10毫米，波状，具短硬毛在基部；叶舌5-7毫米，边不规则，有齿，有穗；叶片直立，宽披针形，背面无毛，鞘先端的1/2 宽度的近基部。

Leaves 3 or 4(–8) per ultimate branch; sheath densely deciduously setose; auricles readily deciduous, falcate; oral setae radiate, purple, ca. 3 mm; ligule prominent, ca. 5 mm; blade lanceolate, 10–23 ×(1–)2.5–3.3 cm, secondary veins 7- or 8-paired, abaxially yellow-green and white tomentellate, adaxially light green and glabrous, base asymmetrically cuneate, margins serrulate.

每末级的分枝的叶3或4(-8)；鞘浓密具刚毛的脱落的；叶耳容易落叶，镰刀形；口头的刚毛辐射状，变紫，约3毫米；杰出的叶舌，约5毫米；叶片披针形， 10-23 *(1-)2.5-3.3 厘米，次脉7-或8配对，背面的黄绿色和白色短绒毛，正面和无毛的淡绿，不对称的楔形的基部，边缘有细锯齿。

Culms rigid, branched at base and covered with leathery yellowish sheaths, 80–100 cm tall, ca. 7 mm in diam. Leaf sheaths glabrous; leaf blades flat or inrolled, tough, 18–30 × 0.4–1 cm, adaxial surface and margins scabrid, abaxial surface rather smooth, apex long acuminate; ligule ca. 0.3 mm. Inflorescence 20–60 × 2–3 cm; racemes ascending or spreading, crowded or spaced, 0.5–3.5 cm; main axis and rachis hispidulous.

秆硬质，在基部分枝并且为所覆盖的革质淡黄鞘，厘米高，无毛的直径约7毫米叶鞘；叶片平或内卷，坚韧， 18-30 * 0.4-1 厘米，正面和给镶边，背面相当清除，先端长渐尖；大约0.3毫米开花的叶舌 20-60 * 2-3 厘米；总状花序上升的或开展，密集的或隔开，0.5-3.5厘米；主轴和轴具短硬毛。

Petioles acute-triangular in cross section, 5–20 cm, sheaths triangular-ovate; leaf blade triangular-ovate, 20–45 × 17–40 cm, 2–3-ternate-pinnate; leaflets subsessile or short-petiolulate, long-ovate to elliptic, 2.5–12 × 1–6 cm, base obliquely cordate to cuneate, margin coarse-toothed or serrate, apex acuminate, glabrous or hispidulous along nerves.

叶柄锐尖三角形的在横断面上，5-20厘米，鞘三角状卵形；叶片三角状卵形， 20-45 * 17-40 厘米，羽状2-3回三出；小叶近无柄或短的小叶柄，长卵形到椭圆形， 2.5-12 * 1-6 厘米，基部斜心形对楔形，边缘粗糙的齿或有锯齿，先端渐尖，无毛的或沿着叶脉具短硬毛。

Lowermost leaf sheath retrorsely strigose at base, uppermost sheaths closed 1/6–1/3 of length; blade grayish green, flat, folded, or involute, papery, 2–8 mm wide, abaxially smooth, adaxially nearly smooth to densely scabrid along prominent veins, apex slender prow-tipped; ligule white or off white to brownish or yellowish, membranous-papery.

最下的叶鞘反曲的具糙伏毛的在基部，最上部的鞘关闭长度中的1/6-1/3个；叶片灰绿色，平，折叠，或内卷，纸质，毫米宽，背面平滑，正面近平滑兑一沿着突出脉浓密粗糙，叶舌白色或者离或者淡黄，膜似纸白色的到带褐色。

"Superficially resembling higher plants, stoneworts have rootlike and stemlike structures, as well as whorls of branches at regular intervals."

轮藻的外观似高等植物︰具根状假根和按一定间隔出现的轮生分枝，直立的圆柱形中轴外围以由小细胞组成的鞘

Basal petioles 1.5–5 cm, sheaths long, broad; blade oblong, 2–4 × 1–2 cm, pinnate; pinnae sessile,(3–) 4–6 pairs, remote; ultimate segments long-ovate to suborbicular, 5–10 × 3–8 mm, base subtruncate or rounded, entire or apex shallowly 1–3-toothed, sometimes 3–4-crenate; terminal pinnae obovate or orbicular, base cuneate, apex more deeply 3-lobed.

基部的叶柄1.5-5厘米，鞘长，宽；叶片长圆形， 2-4 * 1-2 厘米，羽状；羽片无柄，(3-)4-6 对，遥远；末回裂片长卵形到近圆形， 5-10 * 3-8 毫米，基部近截形或圆形，有时，浅全缘或先端1-3齿状具圆齿；更深的顶生的羽片倒卵形的或圆形，基部楔形，先端3浅裂。

Mm, glabrous; blade reflexed, linear-lanceolate, glabrous. Leaves 3 or 4 per ultimate branch; sheath margins initially ciliate; auricles purple, falcate, small; oral setae erect, gray-brown; ligule arcuate, margins initially ciliate; blade lanceolate,(7–)10–16 × 1–1.7 cm, proximally white-gray pubescent, secondary veins 4-paired, transverse veins obscure, base cuneate, one margin spinescent-serrulate, other margin obscurely so.

每末级的分枝留下3或4；鞘边缘最初具缘毛；叶耳紫色，镰刀形，小；口头的刚毛直立，灰棕色；叶舌弧曲，最初给纤毛虫镶边；叶片披针形，( 7-)10-16 * 1-1.7 厘米，下部白色灰色短柔毛，4配对的次脉，不明显的横向脉，基部楔形，具刺有细锯齿的一边缘，如此的其他边缘不明显。

Culm sheaths tardily deciduous, straw-colored, white powdery and stiffly white hairy abaxially, distal margins with cilia 1–2 cm, base without a projection, apex truncate; auricles inconspicuous; oral setae many, 1–1.8 cm; ligule truncate, short, 1–1.5 mm, margin ciliate; blade reflexed, linear-lanceolate, more than 1/2 or 2/3 length of sheath, abaxially glabrous, apex acuminate.

分枝50(-100)缓慢落叶，稻草色，白色粉状和硬白色有毛的厘米竿箨，叶耳不明显；口头的刚毛很多，1-1.8厘米；叶舌削去，短，1-1.5毫米，边缘具缘毛；叶片反折，线状披针形，超过1/2的或2/3段鞘，背面无毛，先端渐尖。

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。