The amounts of ca2 - p , al - p , labile po and mid - labile po , which are more available for plant , increased with the improvement of soil fertility , but generally the avail . p was very poor in soils . 2 随着肥力水平的提高，对作物有效性较高的ca _ 2 - p 、 al - p 、活性op和中度活性op等的含量都呈上升趋势，但是土壤中有效磷含量整体偏低。
The amount of free ions and labile complexes of copper has been determined and the apparent stable constants have been calculated in a proteose peptone medium by anodic stripping staircase voltammetry ( assv ) 采用阳极阶梯溶出伏安法，测定了蛋白胨细胞生长液中的易变形态铜，并获得了总铜量中易变形态的摩尔分数以及易变形态的表观稳定常数。
Therefore , olsen - p , labile p and algae - available p in the soils accumulated gradually with long - term applying fertilizer p , which were favorable to the growth of crops , but enlarged the risk of p loss from soil to water bodies 随着土壤磷素水平的提高，土壤富磷化的同时，作物有效性磷、藻类可利用的磷量也相应的增加，其对环境潜在的影响也明显地提高。
Soil labile organic carbon is involved in all biological and biochemical processes in soil , the minor change of loc can be detected before the content of total organic carbon ( toc ) in soil has changed , although it accounts for small fraction of toc 土壤活性碳直接参与了土壤生物化学转化过程，虽然只占土壤全碳的较小部分，但它们可以在土壤全碳变化之前反映土壤微小的变化。
Nicola : it ' s not easy to find subjects that they center idea . partially , the two albums can be considered of the concepts , but it is not a deliberate plan ; a common denominator between the songs exists , but often it is much labile 要找到能集中许多想法的主题并不容易，这两张专辑就某部份来说是具有些概念性的，但它们并不是审慎思虑下的结果，在乐曲间存在著一些共通性，但通常它们是有更多不安定性的。
The combined sampling pcr detection method was found to be fully feasible for the rapid ( approximately 2 . 5 h ) and highly specific ( no cross - reactivity ) identification of the labile airborne virus in the air containing elevated concentrations of other microorganisms 使用即时定量聚合酵素反应技术结合个人采样器采集空气中病毒，证明于空气中含有其他微生物之情形下本技术对侦测特定病毒之所需分析时间相当短且特异性相当高。
That is to say , there was enrichment tendency for phosphorus , especially for po , with the increase of soil fertility . pi mainly occurred in ca - p forms in which ca10 - p made up most in 58 % ~ 61 % , while the amount of ca2 - p was very lower . po exists mainly in the form of mid - labile po ( around 66 % ~ 69 % ) 在磷素的各种形态中，无机磷形态以钙磷为主，其中以难溶性的ca _ ( 10 ) - p占大多数，达58 - 61 ，而有效性强的ca _ 2 - p等较少；有机磷形态以中度活性有机磷为主，占66 - 69 。
The results showed that the contents of olsen - p and total p in surface yellow soil layer of hilly area have significant difference under various land use patterns , the concentrations of labile p ( cacl2 - extractable p ) or algae - available p ( naoh - extractable p ) also obviously difference in the soils , of which continuous tobacco land has higher level of p in the soils 不同利用方式下黄壤旱地有效磷( olsen - p ) 、土壤易解吸磷( cacl _ 2浸提磷) 、藻类可利用的土壤总磷( naoh浸提磷)的含量出现明显的差异，其大小顺序为连作烟地烤烟-玉米轮作地连作玉米地林地。
To dress the question if other virulence gene were present in this kind of strains , 152 of 436 irp2 - hybridized strains were re - confirmed and selected for this study . the virulence genes or putative virulence genes detected by pcr or hybridization include heat stable toxin ( st ) & heat labile toxin ( lt ) for enterotoxigenic e . coli ( etec ) , invasive plasmid antigen b ( ipab ) for enteroinvasive e . coli ( eiec ) , epec adherence factor ( eaf ) , epec secretion protein c ( espc ) for enteropathogenic e . coli ( epec ) , hemolysin ( hlya ) and shiga toxins ( sltl and slt2 ) for enterohaemorrhagic e . coli ( ehec ) and eaggec probe for entero - aggregative e . coli ( eaggec ) . the prra and yc73 genes of pathogenicity associated island ( pai ) of urepathogenic e . coli ( upec ) and " o " island 28 ( rtx 615 ) gene was also detected , the later was a newly discovered putative pathogenicity island in e . coli o157 : h7 为探讨携带小肠结肠炎耶尔森氏菌的hpi毒力岛的大肠杆菌是否具有其他已知的毒力基因，选取82株由原位杂交和pcr方法初筛irp2阳性的大肠杆菌菌株，进行在致泻性大肠杆菌的25个毒力基因的检测，包括肠产毒性大肠杆菌的热稳定毒素st和热不稳定毒素lt ，肠侵袭性大肠杆菌的侵袭蛋白b基因ipab ，肠致病性大肠杆菌的eaf 、 espc基因，肠出血性大肠杆菌的溶血素hly 、志贺毒素1 ( slt1 ) 、志贺毒素2 ( slt2 )基因，肠集聚性大肠杆菌的eaggec探针，以及在泌尿道致病性大肠杆菌和o157 ： h7大肠杆菌中新发现的毒力岛基因。
Soil labile organic carbon ( loc ) refers to the fractions of organic carbons that are easy to move and to be oxidized and mineralized , and they are quite available to plant and soil microorganisms . soil water - soluble organic carbon ( wsoc ) , microbial biomass carbon ( mbc ) , and easily oxidisable organic carbon ( eoc ) are considered to be the useful indicators of loc 土壤活性有机碳是指土壤中移动快、稳定性差、易氧化、矿化，并对植物和土壤微生物活性较高的那部分碳，常可用水溶性有机碳、微生物量碳和易氧化碳等来进行表征。
