A fft spectrum analyzer was used to measure the resonant frequency 試驗時采用六種實大尺寸試材,共振頻率之測定系利用fft頻譜分析儀。
There are those who prophetize the return of this god marked by the merge of two realities and the lowering of the veils that separate him from his soul aspects on the planet 預見這位神回歸的先知會以兩種實相的結合作為標記,較低層的面紗使在地上的他與他的靈魂外貌分離。
Took the magnolia obovata and prunus sargentill introdultive seedlings as test materials , tested the comprehensive process of wintering performance , analyzed the relationship of different protection measures and plant frostbite rates , the growth situation , explored the best methods of cultivation of magnolia obovata and prunus sargentill introductive seedlings and protection measures in winter , enacted appropriate cultivation and management measures in order to solve the problem of wintering of magnolia obovata under natural conditions in northern region 摘要以日本厚樸和山櫻引種實生苗為試材,綜合引種過程中日本厚樸和山櫻的越冬表現,分析不同越冬防護措施與植株凍傷率、生長狀況之間的關系,探討沈陽地區引種日本厚樸和山櫻栽培的最佳方式和越冬防寒措施,制定適宜的栽培管理措施,解決日本厚樸在北方地區自然條件下安全越冬問題。