But where the boundaries between danger, potential damage and safety lie, and how they vary with the type and number of ash particles, was not taken into account in the decisions to close airspace.
但是，在决定关闭机场时并未考虑何为危险、隐性伤害和安全间的界限以及这三种级别如何随火山灰微粒类型与数量的变化而改变的因素。
As an antioxidant, lycopene protects cell structures and DNA against the nefarious effects of free radicals-small particles that damage healthy cells and allow tumor cells to develop.
作为抗氧化剂，番茄红素可以保护细胞结构和DNA远离自由基的影响——自由基是一种会破坏健康细胞、使癌细胞扩散的微粒。
Especially the particles in ground layer of atmosphere damage human health strongly.
尤其是低层的大气颗粒物，对人体健康的影响重大。
Without the filter core damage filter with large amounts of the impurities metal particles into the host, and lead to host oil damage.
滤芯破损后未经过滤的含大量金属颗粒杂质的油进入主机，导致主机损坏。
Members of the public closely watch levels of PM2.5, particles measuring 2.5 microns across that are easily inhaled and damage lung tissue.
公众成员密切关注PM2.5的水平，2.5微米左右颗粒物很容易吸入并损伤肺部组织。
Damage from atmospheric fine particles (PM2.5) in isolated DNA of alveolar macrophages of rats in Taiyuan City was studied applying single cell gel electrophoresis technique.
运用单细胞凝胶电泳技术，研究了太原市大气细颗粒物(PM 2.5)对分离的大鼠肺泡巨噬细胞DNA的损伤作用。
In this study, we investigated the DNA damage and oxidative stress effects of dust storms fine particles.
本论文对沙尘暴细颗粒物的DNA损伤和氧化应激作用进行了研究。
Less damage to the surface of the materials, it won't influence the drying even for drying the fragile or irregular particles.
对物料表面损伤小，可用于易碎物料的干燥，物料颗粒不规则时亦不影响工作效果。
The radiation damage induced-by energetic particles and photons is one of the main reasons of degradation or even failure of electronic systems in man-made and space radiation environment.
在人为和空间辐射环境中，高能粒子和光子引起的辐射损伤是电子系统性能退化甚至失效的主要原因之一。
The results indicate that the damage caused by the concentration of suspended solid particles is far more serious than the one caused by emulsified oil content.
研究结果表明，固体悬浮颗粒浓度对地层伤害影响程度远大于含油量的影响。
The greater compression effect of the lower speed differential probably resulted in starch damage that occurred on the surface and within the particles.
在低速比较强的挤压作用下，不但产生了断面上的淀粉破损，而且增加了麦渣内部的淀粉破损。
Cutting carbon dioxide emissions would also reduce other types of air pollution, especially tiny particles that lodge in the lungs and cause direct health damage, doctors said.
医生说，减少二氧化碳排放量还能减少另一种空气污染，特别是积于肺部可直接危害健康的微尘。
Volcanic ash can clog up and damage jet engines while the tiny particles of glass in the ash can also melt and block the ventilation holes which can cause the engines to overheat and stop working.
火山灰中的细小玻璃态物质，会融化然后堵塞住散热孔，导致引擎过热熄火。
This damage to the membrane is due to the fact that the highly porous structure is only supported by small "sinter necks" between the particles of the membrane layer.
造成膜层磨损的原因是膜层的多孔隙结构。这种多孔隙结构是通过将细小的颗粒烧结而形 成的。
This damage to the membrane is due to the fact that the highly porous structure is only supported by small "sinter necks" between the particles of the membrane layer.
造成膜层磨损的原因是膜层的多孔隙结构。这种多孔隙结构是通过将细小的颗粒烧结而形 成的。
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