The population density decreases with the increase of diameter class.
种群密度随径级增大而减小。
The DBH, volume, crown breadth and the growth of shoots increase obviously as the density decreases.
胸径、材积、冠幅、新梢生长量随造林密度减小显著增大。
Hardness of the composites increases significantly and density decreases with the increase of fly ash particles content.
随着粉煤灰含量的提高，该材料硬度逐渐增大，而密度逐渐减小。
When the maximum radius approaches to the minimum, the active nucleation sites density decreases and the nucleation boiling is restrained.
当最大空穴半径趋近于最小空穴半径时，活化核心密度减小，核态沸腾受到抑制。
The results show that the corrosion potential improves by 1.339 V. The self-corrosion current density decreases to 1/10 of the AZ91D alloy.
结果表明，复合涂层使基体镁合金的腐蚀电位提高了1.339V，自腐蚀电流密度降低为基体的1/10；
Upward along the slope, soil pH value, organic matter content, total porosity and capillary porosity increase, and soil bulk density decreases.
土壤容重沿坡面向上减小可能主要与土壤有机质含量、粘粒含量、结构状况和松紧度以及孔隙度状况等有关。
The result also shows that the relative density decreases with either the increasing deposition or the increasing average thickness of the film.
同时发现，随入射率的增大或薄膜厚度的增加，相对密度均逐渐减小。
The results show that the dislocation density decreases and the subgrain sizes increase with the increase of deformation temperature and the decrease of the strain rate;
结果表明：随着变形温度的升高和应变速率的减小，位错密度减小，亚晶粒尺寸增大；
With the concentration of the polymer solution increasing, acoustic velocity of the polymer solution decreases, and the polymer density decreases too, but the apparent viscosity increases.
随着聚合物溶液浓度的增加，其声传播速度减小，其密度值也逐渐减小，但其表观粘度值逐渐增大。
As hare density increases, the quantity of these twigs decreases, forcing the hares to feed on low-quality high-fiber food.
随着野兔密度的增加，这些树枝的数量减少，迫使野兔以低质量的高纤维食物为食。
Three of the cases they studied found that the rise of West Nile virus in the U.S. corresponded to decreases in bird population density.
他们在研究过的三个案例中发现西尼罗河热在美国的的流行与鸟类种群密度的下降相关。
When the medium density increases (with more atoms), the slow group velocity decreases.
当介质的密度增加时（包含更多的原子），群速度就降低。
Following a lifestyle that decreases LDL (low-density lipoprotein) and increases HDL (high-density lipoprotein) is the primary path to lower cholesterol.
在日常生活中，人们一般把降低低密度脂蛋白ldl和增加高密度脂蛋白hdl当作是降低胆固醇的主要的路径。
Atmospheric pressure decreases with increase in altitude and so does the density of the atmosphere.
大气压力随高度增加而降低，大气密度也随着高度增加而降低。
With increase of bed height, air pressure and power consumption rise, expansion ratio of the bed decreases, but the density stability and critical fluidized velocity of the bed are hardly changed.
随着床层高度的增加，所需风压及功率增大，膨胀率有所降低，而床层密度的稳定性和起始流化气速几乎不变。
The storage module decreases with increasing the average density of microholes, but it increases with increasing the average area of microholes.
发泡橡胶的储能模量随着微孔平均密度的增加而减小，而随着微孔平均面积的增加而增加。
In some cases, as the density of the spinal vertebrae decreases, they may lose their normal height.
在有些病例，随着脊椎骨密度的下降，他们的正常身高会下降。
Development tendency of mechanical properties is: density increase oil content ratio decreases, Brinall hardness increases, crushing strength goes down first and then goes up.
机械性能的变化趋势是：密度增加，含油率下降，布氏硬度增加，而压溃强度先降低后增加。
The attenuation coefficient decreases with increasing of frequency and the gas density.
衰减系数随频率增加而减小，并且随密度增加而减小。
Pre-aging increases the density and volume of precipitates after artificial aging, which decreases the disadvantage of the nature aging and improves the hardness of auto sheets.
区，使得在随后的时效过程中形成高密度的强化相，减少自然时效的不利影响，提高合金的硬度。
The electronic density of the floridean starch decreases significantly and decomposes gradually.
红藻淀粉电子密度显著下降，逐渐解体；
The results showed that there were significant decreases in length increment, special growth rate and daily weight gain of the juveniles with the increase in stocking density increase.
试验结果表明，各密度组地图鱼幼鱼的生长速度存在明显差异，增重率、增长率、特定生长率和平均日增重都随养殖密度的增加而降低；
The density of GH-cells increases in early embryo and decreases gradually with fetal ages in late embryo.
GH细胞密度，胚胎早期升高，晚期随胎龄增长逐渐下降。
With the increase of solids loading, the particle density increases and the bending strength of green body decreases for the network polymer accounting for only a small amount of the composition.
随着固相体积分数的增加，单位面积的颗粒分布密度增大，网络高分子在成分中只占少量，坯体抗弯强度降低。
The density of pilosebaceous units decreases throughout life, mainly because of the poor development of the secondary follicles.
一生中，毛囊皮脂腺单位逐渐减少，主要的原因是次级毛囊生长能力较低。
Bulk density of small materials, heat conduction tear your eyes coefficient is generally small, but at the same time decreases in the mechanical strength, so be reasonable choice.
容重小的材料，一般导热泪盈眶系数也小，但同时机械强度也随之降低，故要合理选择。
Bulk density of small materials, heat conduction tear your eyes coefficient is generally small, but at the same time decreases in the mechanical strength, so be reasonable choice.
容重小的材料，一般导热泪盈眶系数也小，但同时机械强度也随之降低，故要合理选择。
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