... 残积母质 residual parent material 层；母质层 c-horizon c; c-horizonc 成土母质 soil parent material ...
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C horizon C 母质层
c-horizon c
c层c
以上为机器翻译结果，长、整句建议使用 人工翻译 。
To prevent another catastrophe like Deepwater Horizon, C-suite leaders must move rapidly to create a culture in which safety is valued as the foundation for every other dimension of performance.
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