This thesis focuses on beetle Cybister tripunctatus in addition to some other species of beetles and studied the elytron's micro-structure. We found that there are many concaves、hollows and holes on its structure; the configuration of this material is compound samdwich; the linkage-structure between elytra adopts the concave-protuberant mesh joint with some bristle.

本文以東方龍虱為重點研究對象一级黄片中文字模，并綜合了四個科的十個物種束缚调教视频，通過對甲蟲鞘翅微結(jié)構(gòu)的觀測，發(fā)現(xiàn)東方龍虱鞘翅表面遍布著很小的凹坑极品人妻沉沦秦雅；從其鞘翅斷面來看女子被男子操的视频，內(nèi)部存在著許多空腔和孔道結(jié)構(gòu)，而且甲蟲鞘翅是復(fù)合層狀結(jié)構(gòu)国产伦精品一区二区三区免费视频；對鞘翅間聯(lián)接處研究發(fā)現(xiàn)在线观看黄片儿。，聯(lián)接機構(gòu)采用了凹凸嚙合結(jié)構(gòu)日韩另类综合福利网站在线播放视频，在局部區(qū)域存在微小毛刺和突起結(jié)構(gòu)來增加摩擦接觸。

The floral primordium is initially circular, along with the edge of which slight concaves occur. The outmost whorl of tepal primordia arises as a result of apical meristem division and the floral primordium then is in the shape of triangle. Two further whorls of tepal primordia arise in spiral acropetal sequence and are alternately arranged. When the innermost whorl of tepal primordia is at the late developmental stage, the foremost stamen primordia arise almost simultaneously in spiral acropetal succession and all of the stamen primordia are ultimately arranged in a triangle-cone form. Late in stamen primordium development, carpel primordia arise as same as the young stamen primordia and grow laterally. Grooves are present on the adaxial side of each carpel and develop into ventral sutures gradually closing up.

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The surface morphology structures of Cybister bengalensis were observed and depicted by stereo-microscope and scanning electron microscopy.The results indicated that three typical concaves and universal heaves exist.

采用體視顯微鏡、掃描電鏡技術(shù)觀察并描述了黃緣真龍虱體壁表面各部位的形態(tài)結(jié)構(gòu)特征A级毛片误无码免费真人久久，發(fā)現(xiàn)了3種典型的凹陷和普遍存在的凸起中文痉挛视频在线播放，了解了其三維結(jié)構(gòu)，分析了凹陷與龍虱水生生活的關(guān)系干操美女。

It mainly consists of frame, concaves assembly, mantle assembly, spring, bowl support, and transmission.

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In the same time, the large amount of concaves and convexes variation, proportion of accesses form rich color and shadow relationship, plus re nemen t in details, the whole building demonstrates strong sense of time, culture.

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