双特征的

Five kinds of bacteria were isolated from disease Meretrix meretrix and culture water (two isolated from the M. meretrix, three from the culture water) in Lvsi harbor, Jiangsu province. The results of infection showed that strain WG1702 can cause disease with the mortality rate 100 percent and the same symptoms as original. It was cued that strain WG1702 was the pathogenic bacteria and caused the death in large scare, a preliminary research was done on the bacteria including morphological, physiological, biochemical characteristics, phylogenetic position and pathogenic. Strain WG1702 was a straight-rod gram negative bacterium, the physiological and biochemical indicators were lysine decarboxylase, ornithine decarboxylase, reduction of NO3- to NO2-, mannitose, oxidase and methylred reaction positive, arginine decarboxylase, arginine dihydrolase, salicin and voges-proskauer negative.

本文从江苏吕泗文蛤养殖区发病文蛤和养殖水体中分离到5株优势菌(病蛤中分离到3株优势菌，养殖水体中分离到2株优势菌)，人工感染实验结果显示，菌株WG1702能引起供试文蛤发病，死亡率为100%，且发病症状与原发病症状相同，提示该菌是引起文蛤大面积死亡的主要致病菌，对其形态、生理生化特征、分类地位及致病性进行了初步研究，菌株WG1702为革兰氏阴性菌，直杆状，生理生化指标为：赖氨酸脱羧酶、鸟氨酸脱羧酶、硝酸盐还原、甘露糖、氧化酶、甲基红阳性，精氨酸脱羧酶、精氨酸双水解酶、水杨素、V.P阴性。

The modal characteristics of dual core photonic crystal fibers are analyzed by a full vector supercell lattice overlapping model.

应用全矢量超格子叠加模型分析了双芯光子晶体光纤的模式特征。

This dissertation proposed a new linear algebraic approach—Cumulant Enhancement All Vector Orthogonal Subspace for identification of a nonminimum phase moving average model.

实验分析表明双谱在故障诊断中有较强的特征提取作用和高斯噪声抑制能力。

Apiaceae (umbellifers; carrot family) A family of dicotyledons distinguished by its INFLORESCENCES, which are umbels.

伞形科：双子叶植物中的一个科，特征是具有伞形花序。

Finally, a description of the conduction band edge in biaxially stratined layers is given.

最后，描述了双轴应变下外延层材料的导带带边特征。

Keratoconus, characterized by corneal ectasia occurs bilaterally with unknown etiology.

圆锥角膜是一种以角膜扩张为特征，病因不明的双侧进行性角膜病变。

The finite volume method was adopted to discretize the governing equations. The effects of electrical potential, fluid ion concentration, electrical conductivity and the channel dimensions on the electrical double-layer profile, electroviscous effect and the friction coefficient were explored in detail.

采用有限容积法详细研究了通道壁面电势、流体离子浓度、导电率和通道几何特征对双电层、电黏性和摩擦系数的影响。

Therefore, a experimentent with three exposure types (early cleavage exposure, 0hpf; gastrula exposure, 8hpf and 0hpf exposure but stop after 8 hours, 8h stop) were designed to investigate the toxicity and bioaccumulation of bisphenol A in zebrafish embryo in different stages.

为研究胚胎在不同发育阶段对外源化合物的毒性敏感差异，以0hpf、8hpf和8h终止3种暴露方式进行染毒，探讨斑马鱼胚胎在不同暴露时段对双酚A毒性和生物蓄积特征。

The results showed that the key steps of front-supporting, back-ssupporthing, taking-off, landing, front-driving, and back-driving in Li's walking as well as histechnical charcaters were reasonable, which were finished innaturally smooth, well- coordinated, steady and practicalstyle.

结果表明：黎泽文在竞走过程中的前支撑、后支撑、垂直时相、双支撑时相、前摆、后摆等关键技术阶段与技术特征表现规范合理，整体动作协调自然、稳定性好、实效性强。

L. Volcanic rocks in the Ashele mine are characterized by interbedded basic and acidic pyroclastic rocks, and made up typical bimodat pattern according to 〓 features and Lithochemistry

从地质特征和岩石化学两方面论证了矿区火山岩以基、酸性碎屑岩互层为主要特点，并构成典型的双峰式火山岩组合

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷