尖片

"A spine-cheek anemonefish swims over a field of purple-tipped anemone tentacles, adding its vibrant colors to the living spectrum of coral Eden."

一只尖颊小丑鱼在紫顶海葵的触须中游过，它鲜艳的颜色为这片珊瑚色乐园锦上添花。

Through the analysis of the formation principle of helical curves , the uniform equation of taper surface helical curves is established and the optimization analysis is made of the screw wing cutting edge of the taper spiral auger s tip .

通过分析螺旋线的形成原理，建立了锥形面螺旋线的统一方程，并对圆锥螺旋钻尖的翼片刀刃部分进行了优化分析。

Chromosomes Well-spread and clear metaphase chromosomes of carrot were obtained, after the pretreatment of root tips in vivo with two chemicals, cycloheximide and p-dichlorobenzene.

染色体观察用对二氯苯和放线菌酮40×10~(-6g·L-1的混合药剂胡萝卜根尖，通过压片获得了分散良好、形态清晰的有丝分裂中期染色体。

Spikelets 6.5–9 mm, florets 3, uppermost reduced, green or violet tinged; rachilla densely pilose; glumes unequal, keel scabrid, margins narrowly hyaline, apex acuminate-aristulate, lower glume lanceolate, 4–5 mm, 1-veined, upper glume elliptic, 5–6.5 mm, 3-veined; callus hairs ca. 0.8 mm; lowest lemma 6.5–7 mm, upper part often violet-colored, keel scabrid, apex 2-toothed; awn 12–16 mm, geniculate or rarely recurved; palea subequal to lemma.

小穗6.5-9毫米，小花3，退化，绿色的或紫罗兰色微染的最上部的；小穗轴密被柔毛；颖片不同的事物，翻转，狭给镶边，先端渐尖具小芒，约的胼胝体毛0.8毫米；低外稃6.5-7毫米，紫色有色，龙骨状粗糙的上半部分通常，先端2齿；芒12-16毫米，膝曲的或很少下弯；内稃近等长于外稃。

The research aimed to study the squash technology of root tip in medicinal plant of E.

［目的］研究药用植物刺五加根尖的压片技术。

Objective To evaluate clinical effect of the handling ProTaper Nickel-titanium rotary instruments in preparation of canals of posterior teeth.Methods 96teeth with pulpitis or periapical periodontitis were instrumented by handling ProTaper rotary instruments using step-down technique,and by K files using step-back technique for control.All teeth were obturated with lateral condensation methods.The efficiency of preparation was analyzed with ra-diographs before and after operation.

目的 评价手用ProTaper预备后牙根管的临床效果方法选取患有牙髓炎和根尖周炎的后牙96例，随机分成试验组和对照组各48例，试验组用手用ProTaper 锥度镍钛旋转器械逐步伸入法预备根管，对照组用K锉，逐步后退法预备根管，两组均用侧向加压充填法充填根管，根据治疗后的X线片，评价后牙根管预备效果。

Methods 96teeth with pulpitis or periapical periodontitis were instrumented by handling ProTaper rotary instruments using step-down technique,and by K files using step-back technique for control.All teeth were obturated with lateral condensation methods.The efficiency of preparation was analyzed with ra-diographs before and after operation.

选取患有牙髓炎和根尖周炎的后牙96例，随机分成试验组和对照组各48例，试验组用手用ProTaper多锥度镍钛旋转器械逐步伸入法预备根管，对照组用K锉，逐步后退法预备根管，两组均用侧向加压充填法充填根管，根据治疗前后的X线片，评价后牙根管预备效果。

Using the technique of culturing shoot apex under aseptic conditions, we found that there is a sensitive stage for the sex expression of earlier flower buds, this stage is located before the second leaf full expansing.

利用黄瓜茎尖离体培养系统结合生物切片技术观察了黄瓜早期发育阶段中成花分生组织的发生及发育情况，结果表明：就黄瓜早期发育的花芽而言，可能存在着一个性别决定的敏感点，而这个敏感点位于第二片真叶展开前的某个阶段，此时的花芽绝大多数尚处在花分生组织阶段。

Scape yellow-farinose, 2-8cm long; umbel usually 1-5-flowered; bracts lanceolate, yellow-farinose; pedicel 10mm long; calyx bell-shaped, 5-nerved, thinly yellow-farinose, lobes long-triangular at apex; corolla pink or white, salver-shaped, 1.5cm across, faintly fragrant, with conspicuous yellow centre, lobes obcordate, notched at apex; stamens slightly exserted.

花葶被黄粉，长2~8cm ；伞形花序通常有花1~5朵；苞片披针形，被黄粉；花梗长约10mm ；花萼钟状，具5条粗脉，被薄粉，裂片尖长三角形；花冠粉红色或白色，高脚碟状，直径1.5cm ，有微香具明显的黄心，裂片倒心形，顶端凹缺；雄蕊略露出于花冠筒外。

The sharp week burning disease makes a tooth slice the clinical meaning for checking have:①Understand a bad tooth root-canal circumstance:Like root-canal number, thick thin, flection degree and have have no calcify, have have no inside absorb etc.

尖周炎症作牙片检查的临床意义有：①了解病牙根管情况：如根管数目、粗细、弯曲度以及有无钙化、有无内吸收等情况。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。