The water was reacting with the ferrous iron in the tank.水与水箱中的铁质产生化学反应.Nodules contain a mixture of ferrous and ferrous - oxy leghemoglobin.根瘤含有亚铁和亚铁一氧化豆血红蛋白的混合物.Ferrous metals , timber, and pulp seem to offer the main ...
Many forest tree species have multiple archegonia which, after fertilization produce a number of proembryos.许多林木树种都有颈卵器, 受精以后便产生许多原胚.A similar section through the female plant reveals several bottle - shape archegonia , ...
芦荟可能对发炎以及轻微的皮肤炎症具有镇痛作用。Aloe may have an analgesic effect on inflammation and minor skin irritations.轻微罪行正对社区生活产生有害影响。Petty crime is having a deleteri-ous effect on community life.即使是轻微的头部创伤也会对心理产生长期影响。Even minor head inj...
It was a demeaning and ultimately frustrating experience.那是一次有失颜面并且令人沮丧至极的经历.I'm pretty desk-bound, which is very frustrating.我基本上一直需要伏案工作，这真让人沮丧。...It is a frustrating and difficult time for Pat.对帕特来说，这是一个令人沮丧和颇为艰难...