There is an obvious gravity positive abnormality under the nappe and it is possible that there are various types of hi...
在推覆体之下有明显的重力正异常，可能存在多类型的隐伏圈闭，是勘探油气的有利目标。
Gravity accounts for negative energy, whereas the mass of a star is undeniably positive.
引力算是负能量，当然星星的质量毫无疑问是正的。
When I do positive work, gravity does negative work.
当我做正功的时候，重力做的是负功。
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