Chronic exposure to more than 65 micrograms per cubic meter of any type of particle in this size range may increase risk for health problems.
长期暴露在含有超过65微克每立方米的任何颗粒的空气中，都会增加健康隐患。
Particle size Distribution. The range of particle sizes in the manufactured powder coating.
粉末涂料生产时的粒子尺寸范围。
Property of microgel may be varied in a broad range by changing its composition, structure, crosslinking density and particle size.
阐述了微粒凝胶的性质因其组成、结构、化学交联及微粒大小不同而有很大变化。
Essentially, flocculation process is used to change particle size distribution of suspension, and units of sedimentation and filtration can only remove particles of a certain grain size range.
从本质上讲，絮凝工艺是专门用以改变悬浊液中颗粒粒度分布的，沉淀和过滤工艺也只能去除某些具有一定粒径的颗粒。
Several typical measurement methods on nanoparticle are introduced. Comparison among these methods is made according to their application areas and applicable particle size range.
介绍了几种具有代表性的纳米粒子检测方法，就其应用领域和测量范围比较各自的优缺点。
In general, smaller grain size and greater angularity tend to increase the porosity while an increase in range of particle size tends to decrease porosity.
通常，颗粒越小曲率越大孔隙度越大，而当颗粒尺寸增大时孔隙度会减。
Results indicate that the particle size distribution of several kinds of graphite measured by this method is similar to the particle size range shown in scanning electron micrograph.
实验表明，用圆盘离心沉降法测定几种石墨粒度分布情况与扫描电镜照片粒径范围接近。
Thus, a smaller polymer particle size enables a wider range of filtering materials that can be used with it.
因此，更小的聚合物颗粒大小使能可以使用与它的各种各样过滤的材料。
Au particle of the size in the range of 10-189 nm has been prepared by sodium citrate procedure. The resonance scattering spectra of Au particle have been studied.
采用柠檬酸钠还原法制备了不同粒径的金粒子，并研究了金粒子的共振散射光谱。
The energy accumulator capacity and wire feeding velocity can be adjusted to realize adjustment of mean particle size of the fabricated nanometer metal powder within a certain range.
本实用新型的优点是通过调整储能器容量和进丝速度，在一定范围内实现金属纳米粉体平均粒径可调整。
It was suggested that the reason behind this may be the particle size range due to lack of liberation.
有人倡议，缘由这背后可能是因为粒径规模地解放缺乏。
It was suggested that the reason behind this may be the particle size range due to lack of liberation.
有人倡议，缘由这背后可能是因为粒径规模地解放缺乏。
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