查询词典 RA

Strains of Riemerella anatipestifer were isolated and identified from 300 samples in 57 cases characterized by infectious serositis in ducks in South China, including 2 strains from goose and the other from ducks.

本研究从广东、福建、广西等主要养鸭地区以鸭传染性浆膜炎为主要特征的57次病例近300份病料中共分离鉴定得到55株鸭疫里默氏杆菌(Riemerella anatipestifer，RA)，其中2株分离自鹅，其余53株均分离自鸭。

First , erosion resulting from excessive deforestation in the upper reaches of the river and , second ,heavy silting which ra

第一，过度砍伐引起的河流上游的侵蚀，第二，严重的泥沙淤积抬高了主干道的河床。

Made according to Standard JB/T7974-99,working surface made by skiving,used for rubbing of workpiece and repairing of measuring tools.

按JB/T7974-99标准制造，工作面用研磨工艺用于制作的研磨，量具修理，用本产品研磨后的制件表面粗糙度Ra≤0.08μm。

They are able to do this only when there is a strong ability on the part of the receiving mind/body/spirity complex towards the perception of thought forms.

RA ：我是拉。他们能够这样做，只有当心/身/灵复合体的接受器部分有强大的能力，朝向思想-形态的感知。

AGSRA release system can alleviate the subretinal proliferate after laser injury.

AGS-RA缓释系统可以减轻激光损伤后视网膜下增生反应的形成。

The callus in culture with 0.5 mg/L,1 mg/L, 2 mg/L 6-BAP can only synthetize RA, while the callus with 3mg/L 6-BAP only sythetize SS.

在含有不同浓度6-BAP的培养基中培养2个月的愈伤组织都能够合成糖苷，但所合成糖苷的组分不同。

These results provide some scientific basis for taxonomical study of RA.

研究结果为该菌的分类提供了一定的科学依据。

By comparison, temporally graded RA was observed in tests of semantic and context-free memory.

通过对比，在语义的、不依赖于内容的记忆测试中可看到短期渐进型逆行性遗忘。

By comparison, temporally graded RA was observed in tests of semantic and context-free memory.

通过对比，在语义的、不依赖於情境的记忆测试中可看到短期渐进型逆溯失忆。

Seven inactivated tetravalent vaccines of Riemerella anatipestifer,of which three (1#,3#,7#) employed oil-emulsion,two(4#,6#) employed propolis,two(8#,10#) employed aluminum hydroxide as their basic adjuvants,were developed and compared by the methods as follows:challenges were performed by homologous virulent RA strains to measure their protective abilities;indirect enzyme-linked immunosorbent assay was used to monitor antibody production;lymphocyte transformation test was performed to study the expression of cell-mediated immunity.

本实验通过对供试鸭的攻毒保护试验、通过用ELISA方法对供试鸭特异性抗体消长规律的研究以及通过用~3H-TdR掺入法对供试鸭T细胞免疫水平的检测三个方面对所研制的七种不同佐剂类型的鸭疫里氏杆菌四价灭活苗的免疫原性进行了比较研究。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。