density of population
- density of population的基本解释
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人口密度
- 相似词
- 更多 网络例句 与density of population相关的网络例句 [注:此内容来源于网络,仅供参考]
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The fiber length has only little influence on the basic density within the growth rings, and significant correlation at 0.01 levels was found between the basic density and the fiber length among the different rings. Only slight negative correlation was found between the basic density and the fiber width within the growth rings, but significant positive correlation at 0.01 levels was indicated between the basic density and the fiber width among the growth rings, contrary to that of fiber length. It was demonstrated that significant positive correlations at 0.01 levels between the basic density and fiber double wall thickness, fiber length to width ratio and double wall thickness to diameter ratio, significant negative correlations at 0.01 levels between the basic density and fiber diameter and diameter to width ratio, only slight negative correlation between the basic density and fiber width both in the same growth rings and among the different growth rings. No significant correlation was found between the basic density and the vessel morphological features, nor was the tissue proportion in the same growth rings. But among the different rings, it was found there was significant positive correlation at 0.01 levels between the basic density and the fiber proportion among the different rings, and significant negative correlation at 0.01 levels between the basic density and vessel-elements proportion and ray proportion, only slight negative correlation between the basic density and the parenchym proportion. Significant or no significant negative correlation was found between the basic density and the microfibril angle in the same growth rings, but significant negative correlation was found between the basic density and the microfibril angle among the different growth rings.
生长轮内纤维长度对基本密度的影响不大,而在不同生长轮间纤维长度与基本密度达极显著正相关,纤维宽度与此相反,同一生长轮内纤维宽度与基本密度极显著负相关,不同生长轮间只有微弱负相关;基本密度与纤维双壁厚、长宽比、壁腔比在生长轮内和生长轮间均呈极显著正相关,而与胞腔直径、腔径比均呈极显著负相关,仅与纤维宽度呈微弱的负相关;导管形态对基本密度的影响不显著;同一生长轮内组织比量对基本密度的影响也不显著,但不同生长轮间基本密度与纤维比量呈极显著正相关,与导管比量和木射线比量呈极显著负相关,与轴向薄壁细胞比量仅呈不显著负相关;生长轮内基本密度与微纤丝角呈显著或不显著负相关,但在生长轮间这种负相关达到极显著水平。
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It was found that 0.25%o potassium sorbate produced a positive inhibition against short G+ spore bacillus with a concentration less than 5xl04cfu/ml. A concentration less than %o potassium sorbate hardly exerted a complete control towards short G- plump bacillus having a population density of 5x104cfu/ml. It was proved that use of l% potassium sorbute never controlled the growth of G+ coccus, G~ spirilla and enterobacter with a population density of 104cfu/ml. 1mmol EDTA completely controlled the growth of G+ short spore bacillus and G+ coccus whose cell density was 5xl04cfu/ml. A level of lmmol EDTA showed a limited inhibition against the growth of G- spirilla with a population density of 105 cfu/ml. However, a level of 10mmol EDTA completely controlled the growth of the G- spiral bacteria having a population density of 105cfu/ml. lOmmol EDTA produced a very significant control towards the growth of G"" plump short bacillus with 105cfu/ml. 20mmol EDTA showed a remarkable inhibition against the enterobacter with a population density of 105cfu/ml. Different concentrations of nisin including 25mg/mL, 50mg/mL, 75mg/mL and 100mg/mL were used as bio-preservative to examine its effects against the growth of all strains leading to the spoilage of fresh mutton meat. It was seen that there was a big difference in nisin's concentrations in inhibiting the spoiling bacteria. Generally speaking, as more as 75mg/mL of nisin significantly inhibited the growth of G+ short spore bacillus, G-plump short bacillus, enterobacter, G'spiral bacteria and G+ coccus having a population density of 105cfu/ml.
分别运用山梨酸钾、EDTA和Nisin对7种主要引起羊肉腐败的微生物进行了抑菌实验,结果显示,0.25‰以上山梨酸钾能够有效抑制5×10~4 cfu/mL以下的革兰氏阳性短芽孢杆菌的生长;1‰以下的山梨酸钾不能完全抑制5×10~4 cfu/mL革兰氏阴性粗短杆菌的生长,对10~4 cfu/mL革兰氏阳性球菌菌株、革兰氏阴性螺旋菌菌株和肠杆菌菌株抑制效果不太明显。1mmoL EDTA能完全抑制住小于10~5 cfu/mL革兰氏阳性短芽孢杆菌菌株、革兰氏阳性球菌菌株的生长,能明显的抑制10~5 cfu/mL的革兰氏阴性粗短杆菌菌株生长,对10~5 cfu/mL的革兰氏阴性螺旋菌菌株有一定的抑制作用。10mmoL EDTA能完全抑制住10~5 cfu/mL革兰氏阴性螺旋菌菌株的生长;能明显抑制10~5 cfu/mL的革兰氏阴性粗短杆菌菌株的生长,而20 mmoL EDTA能很明显抑制10~5 cfu/mL肠杆菌菌株的生长。25mg/mL、50 mg/mL、75 mg/mL和100 mg/mL的Nisin几乎对所有引起羊肉的腐败菌有抑制作用,但抑制程度不同,抑菌活性有一定的变化。
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Optical density d of the material or the density of photographic film itself d field part of density d the density of the deep and change some of the most high density (h-red, green, or blue channels in maximum density) L intermediate density density (red, green, or blue channels in minimum density) M minimum density (red, green, or blue channels in the middle of the density) T transmission 4.2Murray-Davies formula in the measurement of surface films, film dot business card printing and membership card making dot area usually is the most important parameters.
光学密度 D 材料或片基本身的密度 D 实地部分的密度 D 深浅变化部分的密度 H 最高密度(红,绿或蓝通道的最大密度) L 中间密度密度(红,绿或蓝通道的最小密度) M 最低密度(红,绿或蓝通道的中间密度) T 透射率 4.2Murray-Davies公式在测量胶片的表面网点面积时,胶片制卡和会员卡制作网点面积通常是最重要的参数。
- 更多网络解释 与density of population相关的网络解释 [注:此内容来源于网络,仅供参考]
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population mean,mean of population:总体均数
总体方差 population variance,variance of population | 总体均数 population mean,mean of population | 总体中位数 population median
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人口估计和预测科;PEPS;预测科:Population Estimates and Projections Section
Population Education Clearing House;人口教育交流所;POPED; | Population Estimates and Projections Section;人口估计和预测科;PEPS;预测科 | population estimation and projection;人口估计和预测;;
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Population Headliners:人口摘要
population growth, structure, density and movement;人口增长、结构、密度和运动;; | Population Headliners;人口摘要;; | Population Information on Line;人口信息联线;POPLINE;