1) pest attack index
为害指数
2) Injury index
为害指标
3) damage index
伤害指数
1.
In a controlled chamber stress experiment,we tested the damage index and mortality of cuttings caused by low temperature of 54 short-rotation eucalypt clones.
本试验共测定了54个短周期桉树无性系在人工气候培养室中的低温胁迫伤害指数和死亡率。
4) seismic damage index
震害指数
1.
The damage indices of three cyclic loading reinforced concrete column specimens were calculated according to three known seismic damage index models, which were based on accumulative damage, deformation-energy and structural stiffness, respectively.
基于钢筋混凝土框架柱试验研究结果和恢复力模型,对国际上较常用的3个震害指数计算模型进行计算。
2.
The damage indices of three cyclic loading reinforced concrete column specimens were calculated according to three known seismic damage index models,which were based on accumulative damage,deformation- energy and stiffness,respectively.
结构震害指数是评价某个结构或构件在受到地震作用后的破坏状态的无量纲指数,是人们在地震后对受损建筑做出处理决策和抗震性能评估的重要理论依据。
5) damage index
危害指数
1.
The maxims of damage rate and damage index were caused by Stephantitis svenson,and the second by white vein disease.
其中,长脊冠网蝽对滇润楠的危害率及危害指数最高,白脉病次之。
6) heat injury index
热害指数
1.
Positive correlation was shown between POD activity and heat tolerance,while negative correlation was seen between heat injury index and heat tolerance.
选用耐热性呈梯度差异、能代表典型区域的5个大白菜品种,进行了过氧化物酶活性、热害指数与耐热性的相关性研究。
2.
The effects of high temperature stress on heat injury index,recovery index,electrolytic leakage,proline and soluble sugar content in eggplant ( Solanum melongena ) seedling of 14 varieties were investigated.
以14个茄子品种为材料,研究了高温对茄子幼苗的热害指数、恢复指数、电解质渗透率、脯氨酸、可溶性糖含量的影响。
3.
The difference of heat injury index between the two combinations is significant(P<0.
高温胁迫对‘Y两优1号’和‘两优培九’头季稻的热害指数分别为0。
补充资料：迁移效率指数、偏好指数和差别指数
迁移效率指数、偏好指数和差别指数
迁移效率指数、偏好指数和差别指数迁移效率指数是用于测定两地间人口迁移效率的指标。它是净迁移对总迁移之比。计算公式为:EIM一摇寿纂拼又‘。。上式中，}人么夕一材方}为i、]两地净迁移人数;从少+材户为i、]两地总迁移人数;El入了为迁移效率指数。 EIM的取值范围为。至100，如某一地区的值越大，反映迁移的的影响也越大。如果计算i地区与其他一切地区之间的人口迁移效率指数EIM厂，则: }艺材。一芝Mj、}EIM汀艺。+乏M，(j笋i) 迁移偏好指数是从一个地区向另一地区的实际迁移人数与期望迁移人数之比。计算公式为:____M.___材尸2行一:一二子一一不石一二，么M“ 了厂‘.厂‘、八 }二不十二六二1 、厂厂7上式中，M“为从i地迁到j地的实际迁移量;艺材。为总的人口迁移量;尸为总人口;M尸I，j为迁移偏好指数。通过计算迁移偏好指数，可以反映各地区的相对引力。 迁移差别指数是反映具有某种特征的迁移人口与非迁移人口区别的指数。例如，专业技术人员的人数所占比重，各种文化程度人数所占比重等，以便研究人才流失和其他间题。计算公式为:M‘从IMD、一翌不丝xl。。 .义V‘ N上式中，M为迁移人数;M，为具有i特征的迁移人数;N为非迁移人数;N‘为具有i特征的非迁移人数;了八了D、为迁移差别指数。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条