森林资源清查中,多阶抽样并不局限于固定面积的抽样单元.Multistage sampling in forest inventory is not restricted to fixed - area sampling units.清查结果中的误差可能导致错误的决定.Errors in the inventory results may lead to erroneous subsequent dicisions.清查结果中的误差可能导...
有可靠证据表明日光曝晒与皮肤癌之间有联系。There is convincing evidence of a link between exposure to sun and skin cancer.深耕30厘米,曝晒日光消毒。Plough deeply in 30cm, and insolate in the sun to disinfect.于干燥处存放, 避免雨淋和阳光下曝晒.Storage Store in dry indoor...