Lignin of rice husk high boiling point solvent ( HBS ) digesting process with aqueous solvent of ethanediol.以乙二醇水溶液为溶剂,稻壳为原料制备木质素.By the innumerable tiny lignin granulometric composition lignin dust may say is blocks the...
Lignin is a characteristic component of secondary walls.木质素是次生壁成份的特征.A new syntan product prepared with tar phenol and lignin sulfonic acid.以工业副产物木素磺酸和焦油酚为主要原料研制出一种新的合成鞣剂.Alkali lignin is an abundant, cheap and renewable...
Symptomatic duodenal diverticulitis is rare.有症状的十二指肠憩室炎罕见.Objective To investigate the diagnosis and surgical procedure selection ileocecal diverticulitis.目的探讨回盲部憩室炎的诊断和手术方式的选择....
电位计的孤刷直接与销子连接.The wiper of the potentiometer is connected directly to the spindle.用销子将其骨架结构与转矩弹簧和指针连接.The cage is connected by a spindle to the torque spring and pointer.用于制造这些销子的金属非常贵.The metal used to make these spills...
I would line up my toys on this windowsill and play...我会把玩具排在这个窗台上来玩。I would line up my toys on this windowsill and play.我会把玩具排在这个窗台上来玩。She picked up a pair of scissors from the windowsill.她从窗台上拿起一把剪刀。Place the plants on...