| 1. | The drag force decreases as the air density decreases .
当空气密度减小时阻力也减小。 |
| 2. | If the dark energy density decreases as the universe expands , then the switch - over point occurs earlier in time than it would for a model assuming constant dark energy density
暗能量密度会随宇宙膨胀而递减的模型，相较于暗能量密度是常数的模型，其转变的时间点将较早发生。 |
| 3. | The results showed that with the increase of heat treatment temperature , both the carbon content and tensile modulus of carbon fibers were enhanced , however the linear density decreased
试验结果表明，随着热处理温度的提高，炭纤维线密度下降，微晶层间距缩小，碳含量、微晶尺寸和拉伸模量得以提高。 |
| 4. | The relative air density decreases with the increasing of altitude . therefore , the discharge performance of air - gap and insulator string at high altitude regions is different from that of the referring standard conditions
高海拔地区相对空气密度较低，绝缘子和空气间隙的放电特性与低海拔地区有很大的差异。 |
| 5. | The field capacity and porosity increase gradually and bulk density decrease gradually . the significance linear regression between the field capacity and soil organic matter is discovered as well as porosity and bulk density
此外，随植被演替， 0 5cm土层田间持水量和孔隙度逐渐增加， 0 5cm土层容重逐渐降低，且均与有机质含量呈显著线性正相关。 |
| 6. | Our results show that with the up to date experimental data , 13c can not sufficiently burn , the neutron number density decrease , the timescale of neutron source become long and these come into conflict with model of thermal pulse agb star
研究结果表明，在新实验结果下， ’ 3c不能充分燃烧，中子数密度降低，中子源持续的时标变长，这与热脉冲agb星的现有模型出现矛盾。 |
| 7. | Results indicate that in the given range cells sizes and pores diameters in porous anodized aluminum films increase with the increase of anodizing voltage , while pores densities and cells densities decrease with the of increase anodizing voltage
结果表明在一定的电压范围内多孔氧化铝膜的孔间距，孔径、晶胞尺寸均随阳极氧化电压的增加而增加，孔密度和晶胞密度却随阳极氧化电压的升高而减小。 |
| 8. | Athough it was relatively high in moderate and medial contaminated soil , amf spore density decrease sharply with the increase of pollution degree . but there still have some spores in serious contaminated soil when the pollution index reached 28 . 3
轻度、中度污染土壤中，每克土壤中的amf饱子可多达49个，随重金属污染程度的增加， amf的抱子密度锐减，但不会完全消失，在综合污染指数达到28 . 3的严重污染(甩10 )土壤中仍有amf的饱子存在。 |
| 9. | In the relatively high dislocation density areas , dislocations form the relatively small cellular structure and there is few isolated dislocation within each cellular structure . here the profile of c concentration in the dimension of a cellular structure is " u " - shaped . the cell diameter increases as the dislocation density decreases , dislocations form the relatively large cellular structure and there are a few isolated dislocations within each cellular structure
发现晶片中位错密度和分布严重影响碳的微区分布，高密度位错区，位错形成较小的胞状结构，胞内无孤立位错，碳在单个胞内呈u型分布；较低密度位错区，胞状结构直径较大，胞内存在孤立位错，碳在单个胞内呈w型分布。 |
| 10. | The results show that : the fillers of sio2 based investment consist of sio2 , al2o3 and mgo , and the binder is nh4h2po4 for sio2 based investment , the bulk density and the compression strength decrease , the apparent porosity and the thermal expansion increase , when the specimens are heated to 900 ; the fillers of al2o3 based investment consist of al2o3 and mgo , and the binder is nh4h2po4 ; for al2o3 based investment , the bulk density decreases and the apparent porosity increases when the specimens are heated to 900 ; the fillers of mgo based investment consist of mgo and al2o3 , and the binder is ca cement ; for mgo based investment , the compression strength decreases and the thermal expansion increases greatly when the specimens are heated to 900
结果表明：氧化硅系包埋料的骨料是氧化硅、氧化铝、氧化镁，结合剂为磷酸二氢铵，其900锻烧后显气孔率增加，体积密度下降，耐压强度降低，热膨胀增大；氧化铝系包埋料的骨料是氧化铝和氧化镁，结合剂为磷酸二氢铵，其900烧后显气孔率增加，体积密度下降，热膨胀变化不大；氧化镁系包埋料的骨料是氧化镁和氧化铝，结合剂是铝酸钙水泥，其900烧后耐压强度明显降低，热膨胀明显增大。 |
