光ファイバーケーブルは人間の髪の毛ほどの細さの小さなガラスでできている。
in ten years' time the Oxbridge mathematicians, scientists, and engineers will not be much more significant numerically than the Oxbridge medical schools are now
You can depend on his help.
What has become of the book I put here yesterday?
Fiber-optic cables are made up of tiny glass fibers which are as thin as human hairs.
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