Laboratory fill test: fill water content, grain analysis and specific gravity test were tested.

填土的室内试验：填土含水量测定、颗粒分析和比重测定。

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"We still have to test how gravity behaves at a sub-atomic, quantum level," he said.

“我们仍然需要测试重力在亚原子，量子级别的影响，”他说。

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"We still have to test how gravity behaves at a sub-atomic, quantum level," he said.

“我们仍然需要测试重力在亚原子，量子级别的影响，”他说。

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