safe depth 安全深度
mining safe depth 安全深度
maximum safe depth 最大安全深度
safe-mining depth 安全开采深度
safe water-cushion depth 安全水垫深度
safe water depth 安全水深
safe mining depth 安全开采深度
safe stoping depth 安全开采深度
For air-cushioned surge tank, most of the qualitative considerations are that the safe-depth should be greater than that of general surge tank at present.
对于气垫式调压室，目前大多定性地认为其安全水深应大于常规调压室的取值。
Professor Bushberg says removing the topsoil might make the land safe for use. But it depends on the depth of the radioactive material.
布希柏格教授说，移除表层土壤可以保证土地的使用安全，但这取决于放射性物质渗入的深度。
However, the experts warned the results were worrying and called for in-depth studies to determine whether or not multivitamins are safe.
但专家警告，这些研究结果令人担忧，并呼吁进行深入研究以确定服用复合维生素是否安全。
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