英語が出来る方助けてください。(かなり困っています。)
英語が出来る方助けてください。(かなり困っています。)
今学生をしているのですが400ページほどある英語の専門書を読み始めたのですがこの部分の訳がどうしてもしっくりこないのですが分かる方いませんでしょうか??
英語が大変苦手なので自分の訳に自信がなく困っています。
先生が海外に勉強に行っているので聞けず大変困っています。もし分かる方がいらしたら宜しくお願いします。
Now, Li(z) is the potential energy for the molecule i, expressed as a function of its
distance z form the plane of the centres of atoms (or ions) in the surface layer; rij is the
distance between the molecule i and each atom (ion) in the solid. In practice, only a
limited number of atoms are taken into account because of the rapid decrease in energy
with distance. The balance between attractive and repulsive interactions means that a
point exists, at distance ze from the surface, where the potential energy of the molecule
is minimum, as represented in Figure 1.2.
Of course, the value of Li(z) must depend not only on the distance from the surface but
also on the location on the surface (i.e. in the xy plane). If this is in the form of one face
of a perfect crystal, there will be a regular variation of potential energy across the
surface. It is not surprising to find that the most favorable site is at the centre of an
array of surface atoms (cf. Figure 1.3). The corresponding depth of the potential energy
well (at ze) will depend on the density and crystal structure of the absorbent and the
polarizability and molecular size of the adsorbate.
The easiest path for the movement of the adsorbed molecule across the surface is via a
col or 'saddle point' and the energy barrier to translational movement in the xy plane is
given by the difference in the corresponding minima potential energies for the two
locations (Figure 1.3).