在菠菜叶片中也存在着转乙酰酶系统.The transacetylase system was also present in spinach leaves.将乙酰丙酮铁, 苯基B- 萘胺及磷脂通过40目筛加入.The ferric acetylacetonate, phenyl betanaphthylamine , and lecithin are added through 40 - mesh screen.以改性的骨架镍为催化剂催...
Children at school receive coloured stars for work well done.学校里的孩子表现得好会得到彩色星星。Stars appeared everywhere, spinning round and round, faster and faster.满眼金星乱转，而且越转越快。The stars must have formed 10 to 15 billion years ago.这些...
It should have prevented rain water warping the door trim.这原本应当能够防止雨水把门的饰边弄翘的。Tilting, warping, and changes in elevation can seriously affect canals and shoreline facilities of various kinks.倾斜 、 翘曲和高程变化可以严重地影响水渠和各种岸边设备....
他们的鹤嘴锄发出来的卡嗒卡嗒声使我从沉思中清醒过来.The rattle of their picks was what woke me from my musing.我命令他做工作, 他就拿一张鹤嘴锄向我冲上来.When I ordered him to work, he rushed at me with his pick.权力拙劣地溺爱着钥匙, 竟利用了鹤嘴锄.The clumsiness of power spoils the ...
Chlorine is a kind of high effective and widely used germicide.氯是一种高效的杀菌剂，用途十分广泛。YOULUJIN ( sodium Dichloroisocyanurate ) is a kind of high effective and widely used germicide and disinfectant.优氯净 ( 二氯异氰尿酸钠 ) 是一种广谱高效的杀菌、...