保存得太久的食品会变坏,是因为受到酵母菌, 霉菌和细菌的侵袭.Food which is kept too long decays because it is attacked by yeasts, molds and bacteria.防止啤酒变坏的主要方法是用纯酵母菌株发酵.The principal methods of avoiding spoilage are the use of pure yeast strains as ...
她戴着一顶褪了色的黑色无边帽,帽上缀着褪了色的假花.She wore a faded black bonnet garnished with faded artificial flowers.我们可以用人造的假花作例证.We may use the illustration of making artificial flowers.桌上有几朵假花.There were some artificial flowers on the tab...
The guards were removing a section of fencing to let it through.警卫在拆除一段围栏好让它通过。The factory is surrounded by electric fencing.工厂有电网围着。I did a bit of fencing while I was at college.我在大学时偶尔玩玩击剑....
From November to December, Acorus calamus was still in growth.菖蒲从11月到12月仍在生长发育.Waterside plants such as calamus, reed general Zhi Cong in shore.水边植物如水葱、菖蒲 、 芦苇等一般在岸边丛植.OBJECTIVE : To analyze and compare the chemical cons...
Objective To analyze effect of propyl gallate in patients with ischemic cardiomyopathy.目的研究培丙酯对缺血性心肌病的治疗作用.Objective To study the surgical treatment of the acromegalic cardiomyopathy.目的探讨肢端肥大症性心肌病的神经外科手术治疗和疗效.Autoimmunit...