根瘤含有亚铁和亚铁一氧化豆血红蛋白的混合物.Nodules contain a mixture of ferrous and ferrous - oxy leghemoglobin.在PH值 7.0―7.5时,一经曝气亚铁离子很容易转化为铁离子.Conversion of ferrous to ferric iron occurs readily upon aeration at PH 7 . 0 - 7. 5.第三个例子是前章提到的硫...
The books looked faded, dusty and unused.那些书看上去褪了色,尘封已久。Tickets with unused SQ or MI sectors , but used interline sectors.SQ或MI航段未使用,其余航段已被使用的机票.She flushed the unused tablets away.她冲 走了未服用的药片。...unused containers of foo...
教学档案袋的评价方法有召开讨论会 、 面谈法 、 叙述法 、 书面评价 、 出题目等.The assessment approaches of teaching portfolios are conference, interview, presentations, written evaluation, rubrics and so on....
这汤实在是太淡了, 请再往汤里放些须盐.The soup is too watery, please add some salt.不过,只要在每天的生活中添加些须简单的原料,你就可以尽情地享受生活.But you can your life to its fullest by adding some simple things to each day....