空白試樣 的英文怎麼說
中文拼音 [kōngbáishìyàng]
空白試樣
英文
blank sample-
Determination of end carboxyl content in pet chip using photometric method was discussed, the optimiza tion of measuring condition and parameters such as sample weight, concentration of titrant, blank of solvent were stud ied
論述採用光度法測定聚酯切片的端羧基,對稱樣量、滴定劑的濃度、溶劑的空白等測試條件和參數進行優化選擇。Resistance to gopher : the protection radio of the cable is more than 95 in two - week ’ s test by comparing the original cable
電纜具有防鼠咬性能通過與空白試樣對比經過連續兩周試驗試樣保護率95 。Blank test sample
空白試驗樣品The research result of insect community development indicate : the differences to quantity and richness of pest, natural enemy and whole insect community among experiment sections are distinct. the dynamic uptrend of diversity and evenness indexes between harmless section and general section are analogical, but that of blank section and two manage sections is different
昆蟲群落動態研究結果表明:各試驗區間害蟲、天敵及整個昆蟲群落的數量與豐富度差異明顯,無公害區與常規區各群落多樣性指數、均勻性指數動態變化趨勢一致,空白區與兩處理區多樣性指數、均勻性指數動態變化趨勢差異較大。In order to research and develop this type of box - car, meishan rolling stock works has done this work since 1999 ; and the first sample wagon was trial - manufactured in 2000
為了填補國內空白,眉山車輛廠於1999年開始進行活動側墻棚車的研製工作,於2000年底試制出首臺樣車。分享友人