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本组中国产1种。
高山灌木。叶近圆形或椭圆形,革质,常全缘,上面有皱纹,下面叶脉呈网格状突出,有毛或无毛;无托叶。花序侧生枝端,具长的花序梗,细圆柱形;苞片圆形或倒卵圆形,淡褐色,淡红色或紫色,有缘毛;腺体1,腹生,2裂;雄蕊2,离生,花丝基部有柔毛;子房有柔毛,花柱短,2裂。
皱纹柳 Salix vestita
小灌木,高约1米。小枝直立状或稍升起,较粗,无毛,栗褐色,有光泽。芽卵圆形,褐色,被疏绒毛。叶椭圆形,卵圆形,倒卵圆形,长4-5厘米,宽1-2厘米,先端钝,基部圆形或阔楔形,全缘或具疏钝齿,上面鲜绿色,叶脉凹陷,有鳞斑状皱纹,下面密被白色细长毛,侧脉和网脉突出;叶柄长约5毫米,上面有沟槽,无毛,下面常有白色长毛。花与叶近同时或叶后开放,花序梗具小叶和丝状柔毛,侧生于小枝上,花序细圆柱形,长1-2厘米,粗3-4毫米;雌花序在果期长达3-4凰米;苞片近倒卵圆形,先端钝,褐色或棕色,边缘密生短缘毛;雄蕊2,花丝离生,基部密生白色柔毛,花药圆形,黄色;子房长卵圆形,密被绒毛,有子房柄,花柱几缺,柱头2深裂,淡黄褐色;腺体1,腹生,2浅裂,长约1毫米。蒴果卵圆形,长3-5毫米,黄褐色,被柔毛。花期6月,果期7-8月。
产我国新疆(阿尔泰山区、布尔津县红毛河和叶门盖迪)。生于海拔1900-2000米的落叶松和西伯利亚红松林下。苏联西伯利亚、蒙古北部、远东、北美均有分布。
柳江河上呗。柳江大桥在龙城路、文慧桥在文惠路、双冲桥在胜利路、三门江大桥在三门江、壶西大桥在潭中西路、三桥在白沙三中路口、文昌桥在三中路北站路交叉十字路口处等等~~
保健枕:一般的保健枕是将中国传统的中药材结合草料组合而成的药枕,让你在不知不觉的睡眠当中,安神健脑、清凉明目、防病强身,而且还能防皱纹。 荞麦枕:是天然材质的枕头。传统的东西流传下来,总有它的道理。荞...
你好,皱纹纸一般价格是6元左右,桐乡格子品牌的彩色皱纹纸不错,售价在6.5元,网上可以买到,不过我建议去当地相关商店询问一下价格再选购比较妥当,这样质量比较有保障。包装用皱纹纸坚韧而有弹性,供包装绒线...
棉花柳Salix × leucopithecia Kimura 二色柳Salix alberti Rgl. 秦岭柳Salix alfredii Goerz ex Rehd. et Kobuski 华西柳Salix occidentali-sinensis N. Chao 朝鲜垂柳Salix pseudo-lasiogyne Lévl. 鹿蹄柳Salix pyrolifolia Ledeb. 三蕊柳组Sect. Amygdalinae W. Koch. 灌木柳组Sect. Arbuscella Ser. 银柳组Sect. Argyraceae Ch. Y. Yang 杞柳组Sect. Caesiae A. Kern. 皱纹柳组Sect. Chamaetia Dum. 乌柳组Sect. Cheilophilae Hao 粉枝柳组Sect. Daphnella Ser. 繁柳组Sect. Denticulatae Schneid. 北极柳组Sect. Diplodictyae Schneid. 绵毛柳组Sect. Eriocladae Hao 黄柳组Sect. Flavidae Y. L. Chang 青藏矮柳组Sect. Floccosae Hao 褐毛柳组Sect. Fulvopubescentes C. F. Fang 绿叶柳组Sect. Glaucae Pax 郝柳组Sect. Haoanae C. Wang 鹿蹄柳组Sect. Hastatae A. Kern. | 筐柳组Sect. Helix Dum. 紫枝柳组Sect. Heterochromae Schneid. 沼柳组Sect. Incubaceae A. Kern. 毛柳组Sect. Lanatae Koeh. 青藏垫柳组Sect. Lindleyanae Schneid. 大叶柳组Sect. Magnificae Schneid. 越桔柳组Sect. Myrtilloides Koeh. 欧越桔柳组Sect. Myrtosalix A. Kern. 五蕊柳组Sect. Pentandrae (Hook.) Schneid. 裸柱头柳组Sect. Psilostigmatae Schneid. 长白柳组Sect. Retusae A. Kern. 柳组Sect. Salix 硬叶柳组Sect. Sclerophyllae Schneid. 川柳组Sect. Sieboldianae (Seemen) Schneid. 细柱柳组Sect. Subviminales (Seemen) Schneid. 四子柳组Sect. Tetraspermae (Anderss.) Schneid. 大白柳组Sect. Urbanianae (Seemen) Schneid. 秋华柳组Sect. Variegatae Hao 黄花柳组Sect. Vetrix Dum. 蒿柳组Sect. Vimen Dum. 紫柳组Sect. Wilsonianae Hao |
方形矿用隔爆箱箱体螺栓组分布结构优化
为解决方形矿用隔爆箱箱体螺栓组均布情况下,受到内部压力时各螺栓受力不均的问题,提出了一种方形压力容器螺栓组布局的优化方法。该方法利用ANSYS有限元进行建模并受力分析,然后对ANSYS有限元的分析结果加权处理,利用Matlab工具对螺栓组的分布情况进行布局优化;然后再次进行有限元分析,发现螺栓组的受力状况逐渐均衡,利用该优化方法反复优化,发现螺栓组各螺栓受力趋于均衡,表明该优化法的有效性。
棉花柳Salix × leucopithecia Kimura 二色柳Salix alberti Rgl. 秦岭柳Salix alfredii Goerz ex Rehd. et Kobuski 华西柳Salix occidentali-sinensis N. Chao 朝鲜垂柳Salix pseudo-lasiogyne Lévl. 鹿蹄柳Salix pyrolifolia Ledeb. 三蕊柳组Sect. Amygdalinae W. Koch. 灌木柳组Sect. Arbuscella Ser. 银柳组Sect. Argyraceae Ch. Y. Yang 杞柳组Sect. Caesiae A. Kern. 皱纹柳组Sect. Chamaetia Dum. 乌柳组Sect. Cheilophilae Hao 粉枝柳组Sect. Daphnella Ser. 繁柳组Sect. Denticulatae Schneid. 北极柳组Sect. Diplodictyae Schneid. 绵毛柳组Sect. Eriocladae Hao 黄柳组Sect. Flavidae Y. L. Chang 青藏矮柳组Sect. Floccosae Hao 褐毛柳组Sect. Fulvopubescentes C. F. Fang 绿叶柳组Sect. Glaucae Pax 郝柳组Sect. Haoanae C. Wang 鹿蹄柳组Sect. Hastatae A. Kern. | 筐柳组Sect. Helix Dum. 紫枝柳组Sect. Heterochromae Schneid. 沼柳组Sect. Incubaceae A. Kern. 毛柳组Sect. Lanatae Koeh. 青藏垫柳组Sect. Lindleyanae Schneid. 大叶柳组Sect. Magnificae Schneid. 越桔柳组Sect. Myrtilloides Koeh. 欧越桔柳组Sect. Myrtosalix A. Kern. 五蕊柳组Sect. Pentandrae (Hook.) Schneid. 裸柱头柳组Sect. Psilostigmatae Schneid. 长白柳组Sect. Retusae A. Kern. 柳组Sect. Salix 硬叶柳组Sect. Sclerophyllae Schneid. 川柳组Sect. Sieboldianae (Seemen) Schneid. 细柱柳组Sect. Subviminales (Seemen) Schneid. 四子柳组Sect. Tetraspermae (Anderss.) Schneid. 大白柳组Sect. Urbanianae (Seemen) Schneid. 秋华柳组Sect. Variegatae Hao 黄花柳组Sect. Vetrix Dum. 蒿柳组Sect. Vimen Dum. 紫柳组Sect. Wilsonianae Hao |
棉花柳Salix × leucopithecia Kimura 二色柳Salix alberti Rgl. 秦岭柳Salix alfredii Goerz ex Rehd. et Kobuski 华西柳Salix occidentali-sinensis N. Chao 朝鲜垂柳Salix pseudo-lasiogyne Lévl. 鹿蹄柳Salix pyrolifolia Ledeb. 三蕊柳组Sect. Amygdalinae W. Koch. 灌木柳组Sect. Arbuscella Ser. 银柳组Sect. Argyraceae Ch. Y. Yang 杞柳组Sect. Caesiae A. Kern. 皱纹柳组Sect. Chamaetia Dum. 乌柳组Sect. Cheilophilae Hao 粉枝柳组Sect. Daphnella Ser. 繁柳组Sect. Denticulatae Schneid. 北极柳组Sect. Diplodictyae Schneid. 绵毛柳组Sect. Eriocladae Hao 黄柳组Sect. Flavidae Y. L. Chang 青藏矮柳组Sect. Floccosae Hao 褐毛柳组Sect. Fulvopubescentes C. F. Fang 绿叶柳组Sect. Glaucae Pax 郝柳组Sect. Haoanae C. Wang 鹿蹄柳组Sect. Hastatae A. Kern. | 筐柳组Sect. Helix Dum. 紫枝柳组Sect. Heterochromae Schneid. 沼柳组Sect. Incubaceae A. Kern. 毛柳组Sect. Lanatae Koeh. 青藏垫柳组Sect. Lindleyanae Schneid. 大叶柳组Sect. Magnificae Schneid. 越桔柳组Sect. Myrtilloides Koeh. 欧越桔柳组Sect. Myrtosalix A. Kern. 五蕊柳组Sect. Pentandrae (Hook.) Schneid. 裸柱头柳组Sect. Psilostigmatae Schneid. 长白柳组Sect. Retusae A. Kern. 柳组Sect. Salix 硬叶柳组Sect. Sclerophyllae Schneid. 川柳组Sect. Sieboldianae (Seemen) Schneid. 细柱柳组Sect. Subviminales (Seemen) Schneid. 四子柳组Sect. Tetraspermae (Anderss.) Schneid. 大白柳组Sect. Urbanianae (Seemen) Schneid. 秋华柳组Sect. Variegatae Hao 黄花柳组Sect. Vetrix Dum. 蒿柳组Sect. Vimen Dum. 紫柳组Sect. Wilsonianae Hao |
棉花柳Salix × leucopithecia Kimura 二色柳Salix alberti Rgl. 秦岭柳Salix alfredii Goerz ex Rehd. et Kobuski 华西柳Salix occidentali-sinensis N. Chao 朝鲜垂柳Salix pseudo-lasiogyne Lévl. 鹿蹄柳Salix pyrolifolia Ledeb. 三蕊柳组Sect. Amygdalinae W. Koch. 灌木柳组Sect. Arbuscella Ser. 银柳组Sect. Argyraceae Ch. Y. Yang 杞柳组Sect. Caesiae A. Kern. 皱纹柳组Sect. Chamaetia Dum. 乌柳组Sect. Cheilophilae Hao 粉枝柳组Sect. Daphnella Ser. 繁柳组Sect. Denticulatae Schneid. 北极柳组Sect. Diplodictyae Schneid. 绵毛柳组Sect. Eriocladae Hao 黄柳组Sect. Flavidae Y. L. Chang 青藏矮柳组Sect. Floccosae Hao 褐毛柳组Sect. Fulvopubescentes C. F. Fang 绿叶柳组Sect. Glaucae Pax 郝柳组Sect. Haoanae C. Wang 鹿蹄柳组Sect. Hastatae A. Kern. | 筐柳组Sect. Helix Dum. 紫枝柳组Sect. Heterochromae Schneid. 沼柳组Sect. Incubaceae A. Kern. 毛柳组Sect. Lanatae Koeh. 青藏垫柳组Sect. Lindleyanae Schneid. 大叶柳组Sect. Magnificae Schneid. 越桔柳组Sect. Myrtilloides Koeh. 欧越桔柳组Sect. Myrtosalix A. Kern. 五蕊柳组Sect. Pentandrae (Hook.) Schneid. 裸柱头柳组Sect. Psilostigmatae Schneid. 长白柳组Sect. Retusae A. Kern. 柳组Sect. Salix 硬叶柳组Sect. Sclerophyllae Schneid. 川柳组Sect. Sieboldianae (Seemen) Schneid. 细柱柳组Sect. Subviminales (Seemen) Schneid. 四子柳组Sect. Tetraspermae (Anderss.) Schneid. 大白柳组Sect. Urbanianae (Seemen) Schneid. 秋华柳组Sect. Variegatae Hao 黄花柳组Sect. Vetrix Dum. 蒿柳组Sect. Vimen Dum. 紫柳组Sect. Wilsonianae Hao |