natural fat奶含有天然脂肪,天然脂肪naturaladj.自然的；天然的；私生的natural flaky graphite天然鳞片石墨natural gamma log curve自然伽马测井曲线natural fracture system自然断裂系统natural Taxus resources天然红豆杉资源natural source adhesive天然胶粘剂natural gas exploration天然气勘探Natural resource owners自然资源所有权人Naturalized cultivation驯化栽培Natural identity theory自然本体论natural thinning by age随年龄自然稀疏