| 释义 |
- 硬石灰岩：一种质地坚硬的石灰岩，通常用于建筑和路面材料。
1 ?硬石灰岩 ... hard leather ==> 硬革 hard limestone ==> 硬石灰岩 hard limited integrator ==> 硬限量积分器,硬性受限积分器 ... 2 ?硬质石灰岩 ... 铁质石灰石 ferruginous limestone 硬质石灰岩 hard limestone 优质石灰 fat lime ...
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So we have been fairly thorough in our discussion about coral reefs, which of course are prominent, oceanic features made of hard limestone skeletons produced by tiny coral animals. 我们对珊瑚礁的讨论已经相当深入了；显然，珊瑚礁具有显著的海洋特征，由小型珊瑚动物制造的石灰骨架构成。 - 2
The danger is likely to continue, they say, until the waves reach an inland area of hard rock which will not be eaten as limestone is. 他们说，这种危险可能会持续下去，直到海浪到达内陆坚硬的岩石区域，这些地方的岩石不会像石灰岩那样受到侵蚀。 - 3
Medium hard formation with high compressive strength. Such as hard shale, limestone, sandstone, dolomite, anhydrite and marble. 高抗压强度的中硬地层，如硬页岩。石灰岩。砂岩。白云岩。和硬石膏。大理石。
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