高于阀值时，SFR随表面密度线性增长。
Above that threshold, the SFR increases linearly with that surface density.
一个星系团中星系的表面密度可从其照片上测得。
The surface density of galaxies in a cluster can be measured from photographs.
他们发现恒星只有在表面密度达到一定的阀值时才会较好的形成。
They discovered that star formation is pretty well non-existent until the surface density reaches a certain threshold in parts of the cloud.
在到期时，肺切除和定量组织学表现来衡量的一小部分肺泡的通气量和表面密度。
At maturity, lungs were excised and quantitative histology performed to measure alveolar air fraction and surface density.
在世界上所有的海洋，包括北冰洋，尾海鞘都是出没在浮游植物密度最大的水域表面。
Found in all the oceans of the world, including the Arctic Ocean, appendicularians tend to remain near the water's surface where the density of phytoplankton is greatest.
在这个最简单的装置里，电流的大小表明了样品表面电子的密度，并能绘制出来。
In the simplest setup, the size of the current reveals the density of electrons in the surface, allowing it to be mapped out.
更重要的是，其表面电荷密度可以通过简单方式改变。
Moreover, the surface charge density of lipidic nanostructures can be varied in a simple manner.
Ni：指i区的平均人口密度，为了简化分析，地球表面被按照网格分成多个i区，每个区的分布假定是统一的。
Ni : Average population density in area i. To simplify the analysis, Earth’s surface is divided into a grid of squares i, and the distribution is assumed to be uniform in each.
材料的巨大表面积、弹性、低密度以及高导电性使得它也可以用于储存能量。
The material's large surface area, flexibility, low density, and high conductivity also make it compelling for energy storage.
两个飞行器间的距离会随着飞船经过的区域的密度高低的变化而改变，为月球表面的密度提供线索。
The gap between them will change as the ships pass over regions of higher and lower mass, providing clues to the density of the subsurface moon.
水星与地球的卫星月球看上去有些相似，只是它更大，密度更高，表面引力几乎是月球的两倍。
Larger, denser, and with almost twice the surface gravity of Earth's moon, Mercury still looks moon-like at first glance.
这些地图显示了红树林的位置和相对分布密度，它们大约占据地球表面的137,760平方千米（53,190平方英里）。
These maps show the location and relative density of mangroves, which cover roughly 137,760 square kilometers (53,190 square miles) of Earth’s surface.
这些东西的密度是那样大，以至于在它们的势力范围——也就是黑洞表面——之内，任何东西，甚至光线，都不能逃离。
These object are so dense that nothing, not even light, escapes once inside a sphere of influence known as an event horizon.
这些地图显示了红树林的位置和相对分布密度，它们大约占据地球表面的137,760平方千米(53,190平方英里)。
These maps show the location and relative density of mangroves, which cover roughly 137,760 square kilometers (53,190 square miles) of Earth's surface.
荷兰，一个丰饶且人口密度较大的北欧小国，国内经济十分脆弱，平静的表面下种族冲突危机四伏。
MEET the Netherlands. A small, affluent, densely populated northern European country, economically timid, with the potential for ethnic strife simmering just under its quiet surface.
当蛋白质结构层密度足够防止细胞渗透进人造血管时，研究人员会在其表面覆盖一层纤维原细胞片。
Then the researchers layered another sheet of fibroblasts on the outside of this scaffold, which is dense enough to prevent the cells from easily migrating to the inside of the engineered vessel.
瘤细胞表面的抗原密度影响细胞毒的敏感性。
Antigen density on the tumor cell surface influences the cytotoxic sensitivity.
零件表面能被低熔点金属渗透以增大密度、强度、硬度、延展性和抗冲击能力。
A part surface can be infiltrated with a low melting point metal to increase density, strength, hardness, ductility and impact resistance.
超过此密度后，微波场在表面快速衰减，气体电离主要在表面进行。
Above this density, microwave field will damp rapidly, so the gas ionization is mainly on the surface.
激光作为一种精密可控的高能量密度的热源，可对金属表面进行多种强化处理。
Laser as a heating source of high energy density of accurate control, can carry out multiple-sort strengthening treatment to the metal surface.
介绍了研制大面积高密度多层厚膜表面组装件的概况及组装设计与制造工艺上所采取的措施。
A survey to make high density multilayer thick film surface mount assembly and measures adopted for mount design and manufacturing technology for them are introduced.
覆盖物是不同密度的穿孔金属组成的一个巨大的方形表面，其外观不断变化。
The covering is a vast prismatic surface composed of different types of perforated metal in varying densities, whose appearance is constantly changing.
现代材料由超高密度的混凝土和大理石制作而成，给予光滑细腻的表面一种高贵感。
The nobility of the smooth and delicate surfaces is given by a contemporary material made of ultra high-density concrete and by marble power.
本文研究考虑损伤时材料的断裂应力，推导出了在表面能密度有限的情况下，损伤断裂应力的计算公式。
In the case of the limited level density of the material surface energy, the fracture stress and the calculation formula of the engineering damage were studied.
对直流TIG电弧阳极板表面电流密度的测量方法——分离极板法和探针（自制）法进行了分析比较。
The measuring methods of D C TIG welding arc anode sheet surface current density split sheet method and probe (made by ourselves) method were analysed and compared.
制卡和会员卡制作图像表面实地油墨密度大小决定制卡和会员卡制作图像阶调和色调再现范围。
Business card printing and membership card making image surface size collesting ink density business card printing and membership card making image-order harmonic tone reproduction.
随着锂化合物阴离子表面电荷密度的增加，其对膨胀的抑制效果依次增强。
The inhibiting affectivity on ASR expansion increases obviously with the surface charge density of lithium compound.
随着锂化合物阴离子表面电荷密度的增加，其对膨胀的抑制效果依次增强。
The inhibiting affectivity on ASR expansion increases obviously with the surface charge density of lithium compound.
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