多叶的
- 与 多叶的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Results showed: in Podocarpus leaves, there is only one midrib, the xylem tracheid of midrib vascular bundle is multi-form, transfusion tissue belongs to Cycas-type and transfusion tracheids are isodiametric, the accessory transfusion tracheids between palisade tissue and sponge tissue are developed; in Nageia leaves, there are plenty of parallel leaves, the xylem tracheids of each vein are relatively simple, transfusion tissue belongs to Taxus-type and transfusion tracheids are longer in longitudinal section than that in transverse section, the accessory transfusion tissue between palisade tissue and sponge tissue is absent.
结果表明:罗汉松属叶1条主脉,主脉维管束木质部管胞发达,转输组织为苏铁型,转输组织管胞等径,栅栏组织和海绵组织之间的副转输组织管胞发达;竹柏属叶多条平行叶脉,维管束木质部管胞相对不发达,转输组织为红豆杉型,转输组织管胞纵向伸长,栅栏组织和海绵组织之间不存在副转输组织。
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The Carmine spider mite (Tetranychus cinnabarinus Boisduval) which is allied to Tetranychus urticae Koch, is one of the serious pests with polyphagy in agriculture, found to infest the mulberry and more than 100 other host plants.
朱砂叶螨(Tetranychus cinnabarinus Boisduval)是多食性主要农业害螨之一,与二斑叶螨是近似种,寄主包括桑树在内的100多种植物。
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The Umayyad dynasty survived only in Spain, where Abd Al-Rahman I founded (756) the Umayyad emirate of Cordoba.
在伍麦叶王朝存活,只有在西班牙,那里阿卜杜勒拉赫曼i成立( 756 )伍麦叶酋长国的科尔多瓦。
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The xeromorphic structures of epiderm appeared as follows:thicker cuticle,developed epidermal hairs,hollow stomas,large stomatic chamber.
按其适应沙生环境的形态结构特点,可以分为薄叶植物、多浆植物、肉茎植物以及卷叶植物等4类。
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The Filicales is much the largest living group of ferns, and they normally have large spirally arranged leaflike fronds derived from lateral branches of the main axis, some or all of which bear sporangia on their margins or undersurfaces.
薄囊蕨纲是现存蕨类植物中数量最多的一个类群,他们通常具有很大的、螺旋状排列的、从主轴的侧枝上形成的叶(巨型叶 MEGAPHYLIS ),其中一部分或绝大多数都是在叶边缘或背面产生孢子囊群。
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As pleomorphic adenoma has a tendency to recur, as well as a potential for transformation into malignancy, thorough removal of the tumor via superficial and/or deep parotidectomy is warranted.
然而多形性腺瘤有复发的机会,且有可能转变为恶性肿瘤,手术中为确实彻底清除肿瘤,通常执行浅叶或深叶腮腺切除。
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On pre-enhanced CT, a huge well-demarcated heterogeneous density of mass composed of multiple popcorn-like and stippled calcifications and low attenuated portion in the right upper lobe and tethered to the right minor fissure.
在CT增强前,可见右上叶密度不均且边界清晰的巨大肿块,内有多处爆米花样及斑点状钙化和低密度区,肿块未越过叶间裂。
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Radiorgaphic changes were more often in right side than in left side. The most commonly affected locations were the superior and basal segments of the lower lobes. Bilobar involvement was frequent. Extensive confluent consolidation was found more often than in upper lobe disease. Endobronchial involvement was proved by bronchoscopy in 28 of 30 patients (93%) and brushing smear for AFB was positive in 13 cases (43%).
胸部X线示:病变右侧多於左侧,最常侵犯部位是下叶背段和基底段,易同时侵犯两个以上肺叶,局部易表现为以段或叶分布的片状浸润实变影。30例行纤维支气管镜检查,28例(93%)镜下有异常改变,13例(43%)刷片抗酸杆菌阳性。
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Based on this, aim at the disadvantage on Wigner Distribution and Fractional Fourier Transform that can't restrain noise interference effectively when be used to detect Linear Frequency Modulated signals interfered by heavy noises, we proposed a improved WD. Simulation results show that this method can restrain noise interference effectively and improve the ability of LFM signals detection. On the other hand, in multi-component cases, WD suffers from the cross-terms, which may impair some of the auto-terms. In order to separate original multi-component signals into components and reconstruct them separately, we can use the method of optimal filtering in fractional Fourier domain. But this method also has a problem that if signals have aliasing in the fractional Fourier optimal domain as well, the reconstructed signals will be distorted. In this thesis, a novel method of quasi Fourier transform is proposed in order to solve the problem of multi-component signal reconstruction, and have good results.
在此基础上,针对Wigner分布和分数维傅里叶变换在处理高噪声背景下线性调频信号检测的问题时存在不能有效抑制噪声干扰的缺点,提出了改进Wigner分布的办法,该方法能够抑制噪声,提高信号的检测能力;针对Wigner分布在处理多分量非线性调频信号时存在干扰项的缺点,以及分数域最优滤波方法在处理多分量非线性调频信号分离重构问题时存在的局限性,该局限性表现为在对最优分数域上也有信号分量重叠的情况进行处理时重构信号发生畸变,提出了新颖的类傅里叶变换的方法,该方法对在最优分数域上也有信号分量重叠的情况也能处理,得到的重构信号失真很小。
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Treatments were as follows: fertilization during leaf-expansion period, fertilization during green-leaf period, and no fertilizer. Results showed that individual leaf area, thousand-leaf weight, and leaf distribution were relatively stable with little influence from fertilization. Fertilization during leaf-expansion compared to the green leaf period significantly increased leaf number, leaf weight per plant, and leaf area index. Fertilization during led-expansion also significantly increased the total weight of leaves corresponding to each branch. The 14th to the 17th branches had the largest number of leaves in the canopy with fertilization increasing the weight of each branch but not changing the center of the canopy.
结果表明:毛竹单叶面积、千叶质量和叶片分布受施肥的影响较小,是较为稳定的指标;展叶期施肥处理(处理1)能显著增加单株立竹的叶片数量,到7月底,其单株立竹叶片总质量和叶面积指数分别比绿叶期施肥(处理2)提高14.8%和13.7%,比不施肥提高27.6%和24.5%;冠层14~17档是单枝叶片数量最多的区域,施肥能增加各枝盘叶片的质量,但对林冠重心的分布无影响;单叶叶面积稳定后(6月),处理1的叶绿素测定值和光合速率显著高于处理2和对照,而处理2与对照间无显著差异。
- 推荐网络例句
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In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.
。但是,在否定句或疑问句里,这种带有"do"的方法表达的效果却没有什么强调的意思。
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Go down on one's knees;kneel down
屈膝跪下。。。下跪祈祷
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Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.
Nusa Dua :豪华度假村,冲浪和潜水,沙滩,水晶般晶莹剔透的水,网络冲浪。