研究间歇性淹水对池杉木材管胞形态变异的影响。
The effect of intermittent flood upon the radial variation of tracheid features of Taxodium ascendens was investigated.
人类学中有关人类的体质形态变异和进化的研究。
The scientific study of the origin, the behavior, and the physical, social, and cultural development of human beings.
经形态变异研究后发现它们可能是这两个物种之间的杂交后代。
These intermediate individuals were hypothesized to be the hybrids of two species after a careful evaluation of their morphological characters.
结果表明:宽鳍鳃的形态变异主要表现在躯体纵轴及头部特征上。
The morphological variations on the head were stronger than that on the the longitudinal axial.
该属植物因叶和苞片等形态变异较大,在分类处理上存在较大的差异。
There is a great deal of variation in certain characters, especially in leaf and bract morphology, and many differences exist in the disposal of taxon.
印戒细胞型淋巴瘤(LSF)是非霍奇金淋巴瘤的一种罕见的形态变异。
Lymphoma with signet ring cell features (LSF) is a rare morphologic variant of non-Hodgkin lymphoma.
某地区志留系中的铀矿床,主要受硅灰岩和硅岩含矿层形态变异部位和断裂构造控制。
The uranium deposit of Silurian age in a certain area is controlled mainly by fracture and morphologically changing parts of uranium bearing siliceous limestone and chert beds.
采用多元统计分析,对春石斛兰花42个栽培种21个主要性状进行了形态变异、性状相关和主成分分析。
The 21 traits of 42 cultivators in Dendrobium nobile were studied by morphological variance and correlation and principal component analyses.
结果表明,种群间16个形态指标中的15个具有显著性差异,而多元方差分析的种群间形态变异的差异性较小。
There are significant difference among 15 of 16 morphological traits, and small difference was shown among populations using the multivariate analysis.
具有单一肌腹,远侧肌腱分别附着于小指和无名指者占3.79%,此型小指伸肌为系统发生的形态变异,具有比较解剖学意义。
We discovered that the tendons in 3.79% of upper extremities arose from a single belly and inserted into the little finger and ring finger. The discovery has significance in morphology a…
具有单一肌腹,远侧肌腱分别附着于小指和无名指者占3.79%,此型小指伸肌为系统发生的形态变异,具有比较解剖学意义。
We discovered that the tendons in 3.79% of upper extremities arose from a single belly and inserted into the little finger and ring finger. The discovery has significance in morphology and com...
结论肋头关节面多分为单、双两种形态,其中第3~10肋双关节面出现率更高,且形态变异较大,可能是双关节面更易出现肋头关节劳损与错位的重要原因。
Conclusion The articular surface of costal head is divided into single form and double form. Double form is prone to appear in 3 to 10 costal ribs with more morphological variations;
许多科学家都认为,国内的狗更显示形态比任何其他已知的物种变异,人类有选择育种的感谢。
Many scientists agree that the domestic dog displays more morphological variation than any other known species, thanks to selective breeding by humans.
病毒没有变异为致命性更强的形态。
目的研究下鼓室窦的形态及变异,为下鼓室及迷路下显微外科手术提供应用解剖学资料。
Objective To provide applied anatomic data for the microsurgery of hypotympanum and infralabyrinthine by studying the shape and variation of hypotympanumic sinus.
目的:对甲状旁腺的形态、位置及变异进行观察。
Objective: The shape, location and variation of parathyroid glands were studied.
表明应力应变异常形态的时间特征与地震的孕育和发生有较明显的关系。
The results show that the anomalies' shape character of stress and strain has obvious relation with the development and occurring of earthquakes.
本文还探讨了研究花粉形态在种内变异的意义和必要性。
In addition, the significances of intraspecific variations of pollen morphology were discussed in the paper.
应用正交试验设计方法,系统分析了不同林龄、不同立地条件和不同林分密度下人工杉木林木材纤维形态的变异规律。
By using orthogonal design, this paper systematically analysed the variation law of fiber morphology of Chinese fir wood from plantations with different ages, densities and growing sites.
影响管胞形态地理变异的气候因子中,水湿条件是主导因素,其次是温度。
Among the climatic factors which affect the geographic variation of tracheid morphological, moisture and rainfall are the principal factors, secondary is temperature.
对自适应粒子群算法引入变异算子,并对其进行改进,将其应用到淋巴瘤形态参数的分类问题上。
This paper adds mutation operator to adaptive PSO and apply it in the lymphoma morphology parameter classifier problems.
导入后代植株形态性状上的变异主要表现为籽粒颜色特殊,部分株系植株较高、叶片肥大、茎杆粗壮;
The main variations of offspring in the plant morphologic characters were special seed-color, tall plant height, fat leaves and thick stalk.
这两种新抗体的发现之所以重要,是因为HIV病毒很容易发生变异,而这两种新抗体可以抵御以任何形态出现的HIV病毒。
These two new antibody discovery is important because the HIV virus is prone to mutation, and two new antibodies appear to resist any form of HIV.
通过花药培养获得的水稻植株中,具有丰富的倍性变异,通常需在成熟期基于形态特征识别单倍体、二倍体及多倍体。
Through rice anther culture several kinds of ploidy plants can be obtained, such as haploid, diploid, polyploid and usually based on the morphology to distinguish their ploidy during maturity.
形态差异分析是确定生态型分化和研究遗传变异的基本手段之一。
The analysis of morphological variation is the one of basic methods that identify ecotype differentiation and genetic variation study.
采集贵州省龙里林场马尾松密度试验林15年生马尾松木材,5种造林密度,研究造林密度对马尾松管胞形态及其径向变异的影响。
The tracheid form and radial variance were studied for 15 years Masson pine plantations with five different planting densities in Longli, Guizhou.
但有资料表明下颌切牙的根管解剖形态较为复杂,变异较多。
However, some research data show that mandibular incisors' root canal anatomy is comparatively complex, and root canal system has many variations.
结果表明:该属植物种子微形态特征在种的水平上具有分类学意义;同种的不同地方居群间基本类型一致,但也存在一定程度的变异。
The results show that the seeds micro-morphological characteristics have taxonomic and significance at species level and there is little variation existing in different populations.
最后探讨了不同期癌细胞的功能和形态结构的变异程度与患者预后的关系。
Finally, the relationship of the function and mutation degree of morphological structure of cancer cells at various times with prognosis of sufferers was studied.
本文应用遗传算法,采用基于“链码”的编码方式和数学形态学的变异算子,设计了一种连续体结构拓扑优化的新方法。
A novel algorithm for topology optimization of continuum structures has been designed on the basis of "chain-code" encoding and mathematical morphologic operators.
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