N - hydroxyethylpyrrolidone ( NHP ) was synthesized from � � - butyrolactone and ethanolamine on Y molecular sieve catalyst by two steps.以改性Y分子筛为催化剂,γ-丁内酯和乙醇胺为原料,采用γ - 丁内酯法两步合成N - 羟乙基吡咯烷酮 ( NHP ).Surface active propertie...
A NEW SPECIES UF ACANTHUS LINN . FROM FUJIAN ( FAMILY ACANTHACEAE )福建老鼠?属一新种 ( 爵床科 )OBJECTIVE To search antioxidant compounds from Acanthus ilicifolius L.摘要目的从药用红树植物老鼠?中寻找具有抗氧化的活性成分.CONCLUSION Acanthus ilicifolius L. has...
Artistically, the Assyrians were particularly noted for their stone Bas - reliefs.在艺术上, 亚述人最有名的是石浅浮雕.Within each niche , were white stucco reliefs of gods and goddesses.在每个壁龛里面, 放有用白色灰泥做成的男女神像.Reliefs on coins of the you...
A NOTE ON A SMALL FIELD RAT , MUS C . CAROLI BONHOTE IN FUJIAN ( MAMMALIA: MURIDAE )福建的卡氏小鼠 ( 啮齿目: 鼠科 )SOM algorism is implemented in the C ++ program. It's used for face image classification.这个C++语言写的程序实现了SOM算法, 用于...
"The fuel gauge is broken." — "Broken? How do you mean?"“燃油表坏了。”——“坏了?你说清楚点?”The fuel gauge reads below zero.燃油表显示油量在零以下。The gauge must be giving a faulty reading.量表的显示肯定有误。...