参考：「mean free path」示例短语列表
mean free path是一个英语单词，有几个不同的含义。 让我们用例句来解释每个的含义和用法！
When electrons are accelerated in the channel, they gain energy along the
mean free path
.
当电子在通道中加速时，它会在
其平均自由程
期间获得能量。
A control unit of the device calculates the
mean free path
from the ratio between the first and second charged particle numbers.
根据本发明的实施例的用于测量
平均自由程
的装置包括产生离子的离子源和距离子源的飞行距离为0以上的带电粒子的第一飞行距离L1。检测带电粒子数量的收集器(24a)，以及检测具有比第一飞行距离长的第二飞行距离的带电粒子的第二带电粒子数量的收集器(24b)。
It is reduced by using nanostructured Si with size smaller than the phonon
mean free path
, however, k tends to be saturated due to an amorphous limit about 2 W/mK.
另一方面，纳米点比声子的
平均自由程
小，纳米点晶体界面处的热传导受到干扰。因此，这种纳米点连接结构仅降低了k，而没有显着降低Si晶体的σ，并且最小0.78±0.12 W/mK的值降低至块体Si值的1/200，热导率超过非晶极限。此外，纳米点晶体每个界面的热阻为膜堆叠的计算值结构的功率约为0.7 x 10-9 m2 kW，而其约为4 x 10-9 m2 kW。这个结果表明必须考虑热传导，包括声子的波动性质。
On the other hand, it is already known that the
mean free path
at the lowest energies (few to several eV or less, where dissociative attachment is significant) is well over 10 nm, thus limiting the ability to consistently achieve resolution at this scale.
另一方面，众所周知，最低能量（几个 eV 左右，或在解离附着占主导地位的区域）
的平均自由程
远高于 10 nm，因此该尺度的分辨率受到限制可靠地实现的能力。
The electronic beam recording board holding the resist film whereupon information recording is to be performed by electronic beams is provided with a surface layer area composed of a material having a larger
mean free path
of an electron, which advances inside by electronic beam irradiation from the resist film side, than a prescribed value.
在承载有利用电子束记录信息的抗蚀剂膜的电子束记录基板中，由通过从抗蚀剂膜侧照射电子束而向内行进的电子的
平均自由程较大
的材料制成的表面层区域比预定值有。
Disclosed is a thermoelectric conversion element comprising: a thermoelectric conversion material; and metal or alloy particles which have an average particle diameter of 1 to 100 nm and are dispersed in the thermoelectric conversion material, wherein at least some of the metal or alloy particles are dispersed at a space equal to or smaller than the
mean free path
of a phonon of the thermoelectric conversion material.
1 .一种热电转换元件，其特征在于，在热电转换材料中分散有平均粒径为1～100nm的金属或合金粒子，所述金属或合金粒子的至少一部分
具有热电转换材料的声子的平均自由程。
提供以下列间隔分布的热电转换元件。
It is formed from nano-sized particles of silica that are bonded under compression into long tangled chains. The air is contained as minute pockets in the structure that are smaller in size than the
mean free path
of an air molecule, the distance it must travel to collide with another air molecule.
Microtherm 由纳米尺寸的二氧化硅颗粒组成，这些颗粒以非常长且复杂的链连接在一起，形成
平均自由程小于气体分子平均自由程
的微观单元。
One of disadvantages of these soft-X-ray methods is that obtained data is strongly dependent on the surface condition of the sample because detection depth is shallow due to a short inelastic
mean free path
of photoelectrons inside the solid material.Therefore, it has been difficult to observe bulk electronic states that contribute to the solid-state properties.
传统的低激发能光电子能谱中，光电子在固体中非弹性散射的
平均自由程
较短，探测深度较小，因此所获得的信息强烈依赖于样品的表面状态，观测起来一直比较困难有助于物理性质的体电子态。
Physics of Mesoscopic Materials – Graduate School of Engineering Kyoto University Syllabus Course Description The first half of the lecture explains the mesoscopic phenomena, a variety of electronic transport phenomena observed in a nano- or atomic-scale specimen that is smaller in size than the
mean free path
of electrons.
介观材料特性 – 京都大学工学研究科 教学大纲 讲座概要 前半部分，我们将解释在尺寸等于或小于电子
平均自由程
的样品中观察到的所谓介观电子传导现象。
2(b). Now, the flying head slider flies above a magnetic medium rotating at high speed with the minimum separation of 12 to 15 nm, which is much shorter than the molecular
mean free path
of the air (the average distance that a molecule moves from colliding with one molecule to another molecule: 64 nm at the atmospheric pressure).
浮头滑块目前具有15-1,000个分子
的平均自由程，远短于空气分子的平均自由程
（大气压下一个分子到下一个分子的平均飞行距离=64纳米）。高速旋转的磁介质，最小飞行间隙为2纳米。
Disclosed are a device for measuring the
mean free path
, a vacuum gauge, and a method for measuring the
mean free path
, which enable the direct measurement of the
mean free path
of charged particles.
本发明提供一种能够直接测量带电粒子
的平均自由程的平均
自由程测量装置、真空计以及平均
自由
程测量方法。
DEVICE FOR MEASURING
MEAN FREE PATH
, VACUUM GAUGE, AND METHOD FOR MEASURING
MEAN FREE PATH
平均自由程
测量装置、真空计以及
平均自由程
测量方法
Abstract High Knudsen number flows such as highly rarefied gas flows with large
mean free path
and gaseous flows around nano-devices with small characteristic length have become more important.
传统上，此类流针对的是稀气体流，但随着典型长度极小的微/纳米器件的实现，
它们
有必要以同样的方式处理周围的流场。
The scattering
mean free path
of the material constituting the standard reflection plate (43) is greater than the spatial coherence length (Lsc) established by using the predetermined distance (L) of the standard reflection plate (43).
测定探针3在插入到插入部41a中的状态下与测定探针3的前端相距规定距离L地配置，在测定对象波长范围内的照射面内反射率
均匀
。提供了特性，并且构成标准反射器43的材料的散射平均自由程大于使用预定距离L确定的空间相干长度Lsc。
This invention provides a thermoelectric conversion material in which at least a part of an insulating material contained in the thermoelectric conversion material has a particle diameter which is not more than the
mean free path
of phonon of the insulating material, or the dispersion spacing between the insulating materials is not more than the
mean free path
of phonon of the thermoelectric conversion material.
另外，复合纳米颗粒是通过将热电转换材料的原料颗粒还原并沉淀在由绝缘材料制成的纳米颗粒上，随后进行热处理以形成其中纳米颗粒被热电转换材料涂覆的复合纳米颗粒
，以及
烧结而形成的。填充并烧结复合纳米颗粒的步骤。
听听“ mean free path ”的俗音（发音）！
读法是【friː*ː pɑːθ*ɑːθ】。 听下面的视频并大声发音【friː*ː pɑːθ*ɑːθ】。