Crewmen aboard the tanker sighted a ship in distress off the coast of Senegal.

油船上的船员们在塞内加尔的近海发现一艘失事的船。

Fish could be sighted finning near the surface.

我们可以鱼把鳍露出水面。

After five days at sea, we sighted land.

我们在海上航行五天后见陆地。

The hunter sighted carefully before firing his gun.

猎人射击前仔细瞄准。

We had sighted the vessel and were following it.

我们已船并在跟随着它。

We sighted land at last.

我们终于见陆地。

A physiotherapeutic apparatus for preventing and treating near sighted eye has a convex lens used as objective lens, lens cone, eyepiece, headgear and lens set.

一种防治近视眼的理疗器，它有作为物镜的凸透镜、镜筒、目镜，还有头套和透镜组，它用于人们在近距离上长时间用眼时戴在眼上，可以使被视物的像清楚、放大和变远。