坚硬的

He breaks up strong ground with a pick.

他用镐刨开坚硬的地面。

To build this tunnel we had to cut through the solid rock.

为了修建这条隧道, 我们必须凿开坚硬的岩石。

The profile of the old warrior was characterized by a strong jaw and an aquiline nose.

老战士侧面像的特征是一个坚硬的下巴和一个鹰钩鼻。

These are useful in hard rock mining where high brisance, high shattering effects, are desired.

这种炸药，对需要高威力、高破碎效应的坚硬岩石，是有用的。

Drupe (pyrenocarp) A fleshy indehiscent fruit containing one or more seeds each surrounded by a hard stony wall, the endocarp.

核果（子囊壳）：是一种肉质闭果，其内包含一枚或多枚种子，并且每粒种子包被着坚硬的壁，即内果皮。

During normal play, there are six players, including one goaltender, per side on the ice, each of whom is on ice skates.

每名队员都配备一支带杆刃的冰球杆来控制场上唯一的一个小而坚硬的扁平黑色球，它被叫作冰球。