beating reed
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Owi ng to that the main shaft speed and the beating speed of reed can not attain the norma l values at setting-on, the warp tension and the beating force of the reed can neither reach the normal level. Therefore, the relative slippage movement of the weft against the warp du ring beating will be less, while the common movement of the weft together with the wa rp will be bigger than those at normal running. As a result, the setting-on place is the n caused by the normal density not being obtainable in the woven fabrics.
织机开关车时由于主轴转速、钢筘打纬速度达不到正常数值,使经纱张力及钢筘打纬力达不到一定的正常数值,以致打纬过程中经纬纱线相对滑移量比织机正常运转时的数值小、共同移动量比正常运转时的数值大,所形成的织物达不到正常的纬密,在织物上产生横档疵点。
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Great crested grebe, little grebe are only found in open water. Long-billed ringed plover,〓lack-tailed godwit, common redshank and fantail snipe are only found in pond bank. Oriental great reed warbler, black-bowed reed warlber, Japanese marsh warbler, Chinese reed bunting and reed bunting are only found in reedbed. Some species can be found in all the three types of habitat.
凤头??是明水面的典型种类,剑鸻、黑尾塍鹬、红脚鹬、扇尾沙锥是自然泡泥滩的典型种类,雀形目中的东方大苇莺、黑眉苇莺、斑背大尾莺、震旦鸦雀、红颈苇鹀、芦鹀是典型的芦苇沼泽鸟类,还有一些是三种生境的共有种类。
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Higher Ca distributed in bulliformcell than in mesophyll cell and bundle sheath cell of dune reed, higher Mg distributedin mesophyll cell and higher K, Na and Cl distributed in sheath cell HigherNa and Mg distributed in mesophyll than in bulliform cell and bundle sheathcell of light salt meadow reed, and higher K, Ca and Cl distributed in itsbundle sheath cell. Higher Na and Mg distributed in bulliform cell than in mesophyllcell and bundle sheath cell of heavy salt meadow reed, higher K, Ca and Cl distributedin its mesophyll cell. This paper discussed the distribution conditions of theabove five ions in leaf cell of the four reed ecotypes and the meaning ofphysiological adaptation to habitat in detail.
沙丘芦苇的泡状细胞内Ca分布较叶肉细胞和鞘细胞高,叶细胞内Mg分布较高,在鞘细胞内K,Na和Cl布较高;轻度盐化草甸芦苇叶肉细胞内分布了较多的Na和Mg,在鞘细胞内K,Ca和C1分布较叶肉细胞和泡状细胞高;而重度盐化草甸芦苇泡状细胞内分布了较多的Na和Mg,叶肉细胞分布了较多的K,Ca和Cl;详细讨论了以上五种离子在不同生态型芦苇叶片内不同细胞类型的分布状况与环境适应的意义。
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reed;Indian rice;water oats;reed;Zizania:菰;茭白
芦苇沼泽 reed swamp | 菰;茭白 reed;Indian rice;water oats;reed;Zizania | 芦苇沼泽期 reed-swamp stage
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beating machine:搅打机
beating engine 打浆机 | beating machine 搅打机 | beating tower 塔式碎解机
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beating machine:打浆机
beating action 搅拌作用 | beating machine 打浆机 | beating rod 支柱