不尖的

Since chemical composition and other characteristics are similar, it is quite diffictl to identify spinel from ruby and sapphires with unaided eye, which is the main reason that both gemstones have been confused long time.

尖晶石的呈色机理与红蓝宝石大体相同，化学成分和其他性质也很相似，靠肉眼来识别是不可能的，因此几世纪以来，二者一直混淆不清。不过，没有像黄色蓝宝石那样颜色的黄色尖晶石，因为使黄色蓝宝石至色的铁离子使尖晶石呈浅蓝或蓝绿色。

Panicle open, 10–30 cm; branches in distant whorls, capillary, flexuous, 5–15 cm, mostly unbranched, tipped by a raceme; racemes 2–5-noded with 7–13 spikelets, sometimes branched with up to 40 spikelets, disarticulating at maturity, one spikelet of a pair sessile, the other pedicellate; rachis internodes and pedicels slenderly clavate, margins ciliate, hairs 0.7–1 mm. Spikelets 4.5–5 mm; callus hairs ca. 1 mm; lower glume lanceolate, thinly pilose, veins smooth below middle, scaberulous above, apex acuminate; upper glume ciliate on margins, acuminate or emarginate and mucronate; lower floret sterile, palea reduced; upper lemma 2-lobed to middle; awn 5.5–8 mm.

圆锥花序打开，10-30厘米；在远轮生方面的分枝，发状，，5-15厘米，多数不分枝，被总状花序端部； 7-13小穗2-5有节具的总状花序，40小穗的有时分枝具可达，成熟时脱节，一对无梗，另一个的一小穗；棍棒状的轴节间和花梗slenderly，边缘具缘毛，头发0.7-1毫米小穗4.5-5毫米；胼胝体毛约1毫米；披针形，稀疏具柔毛的下部的颖片，脉平滑的中间以下，在上面微糙，先端渐尖；在边缘上具缘毛的上面颖片，渐尖的或微缺和短尖；不育的下部小花，退化的内稃；上面外稃2裂的至中部；芒5.5-8毫米花粉囊2-3毫米。

Other fish in succession balloonfish of help sb to get over his worries not only do not listen, instead makes fun of a power and prestige to come, it bilges abdomen so that rouse to rouse, fin pricks vertical stroke to get spinous, hold out motionlessly go up in surface, come to death since outfit.

于是，瞪眼张腮大骂桥墩不长眼，竟撞到我头上。别的鱼纷纷劝解河豚不但不听，反倒耍起威风来，它把肚子胀得鼓鼓的，鳍刺竖得尖尖的，一动不动地挺在水面上，装起死来。

Other fish in succession help sb to get over his worries, balloonfish not only do not listen, instead makes fun of a power and prestige to come, it bilges abdomen so that rouse to rouse, fin pricks vertical stroke to get spinous, hold out motionlessly go up in surface, come to death since outfit.

于是，瞪眼张腮大骂桥墩不长眼，竟撞到我头上。别的鱼纷纷劝解，河豚不但不听，反倒耍起威风来，它把肚子胀得鼓鼓的，鳍刺竖得尖尖的，一动不动地挺在水面上，装起死来。

Background— Mild commissural mitral regurgitation is associated with significantly higher restenosis-free surial after percutaneous mitral aluloplasty, which suggests that different mechanisms of significant MR after PM may hae different clinical courses.

背景：经皮二尖瓣成形术后严重高度非再狭窄存活率与轻度交界处损伤的二尖瓣关闭不全相关，表明经皮二尖瓣成形术后严重二尖瓣关闭不全的不同机制可能有不同的临床过程。

Background— Mild commissural mitral regurgitation is associated with significantly higher restenosis-free surial after percutaneous mitral aluloplasty, which suggests that different mechanisms of significant MR after PM may hae different clinica

背景：经皮二尖瓣成形术后严重高度非再狭窄存活率与轻度交界处损伤的二尖瓣关闭不全相关，表明经皮二尖瓣成形术后严重二尖瓣关闭不全的不同机制可能有不同的临床过程。

Petiole 5-8(-12) mm; leaf blade leathery to thickly papery, elliptic or oblong-elliptic, 6.5-10(-15)× 3-4(-6) cm, base cuneate or acuminate, margin entire to crenulate, apex acute or acuminate, sometimes shortly caudate; lateral veins 7-9 pairs, not evident, slightly curving forward, redividing and disappearing before reaching margin.

叶柄5-8(-12)毫米；叶片革质的到厚纸质，椭圆形的或长圆状椭圆形， 6.5-10(-15)* 3-4(-6)厘米，基部楔形或渐尖的，边缘全缘对渐尖的具细圆齿，先端锐尖或渐尖，有时短尾状；侧脉7-9 对，不明显，稍弯曲寄，重新分配和在到达边缘前消失。

Sepals acute, acuminate, or obtuse apically, mucronulate or not, not long attenuate, herbaceous, membranous, or leathery; corolla reddish, purplish, lilac to pink, or white.

锐尖，渐尖的萼片，或钝顶部，与否具小短尖，渐狭，草质的长的不，膜质，或革质；花冠带红色，略带紫色，淡紫色的到粉红色，或白色。

Root,immunoassay of ELISA(enzyme linked immunosorbent assay) was employed to determine IAA concentration in root tip, unilateral application of agar block containing IAA on root tip was carried out to investigate the effect of exogenous IAA on phototropic response.

为了研究生长素在水稻根负向光性反应中的作用，用含有IAA的琼脂块贴附在种子根的根尖表面观测IAA对根的生长效应，用ELISA法测定根尖的IAA含量，并对种子根弯曲部分进行半薄切片，结果表明：(1)种子根的生长方向既受光的调控也受外施的IAA的调控，根尖向贴有含IAA琼脂块的一侧弯曲生长；(2 )不定根在光照 1.5h后，背光侧的IAA含量明显大于向光侧；(3)种子根尖发生弯曲生长是伸长区的细胞不均等生长所致。

His nostrils, which were thin and pointed, with sharp dints in them, had a singular and most uncomfortable way of expanding and contracting themselves; that they seemed to twinkle instead of his eyes, which hardly ever twinkled at all.

Dickens， David Copperfield 他那两个鼻孔——薄而尖，上面还有尖尖的小坑坑——来特别奇怪地那么一翕一张，叫人看了顶别扭的，那就好像是：因为他那两只眼一点也不会眨巴，所以他那两个鼻孔才来替眼睛眨巴。

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。