有些金属是以天然状态存在的，即不与其他元素化合。
Some metals are found in their native status, that is, uncombined with other elements.
这些形容词共有的中心意思是。处于天然状态未经加工使用的。
The central meaning Shared by these adjectives is. In a natural state and not yet processed for use.
采用剩余推力法和新的抗滑桩优化方对该滑坡体天然状态工况进行了稳定分析。
It analyses the slope stability in the state of natural condition with the residual thrust method and new anti-slide pile optimization method.
应用推荐