本底

Objective To determine the susceptibility of Rattus rattoides to bromadiolone and provide base data for R.rattoides resistance to bromadiolone.

目的 测定黄毛鼠对第二代抗凝血灭鼠剂溴敌隆的敏感性，为黄毛鼠的抗药性检测提供敏感种群本底资料。

The wild-type represser protein can incompletely suppress foreign gene expression which show leaky nature.

阻遏蛋白不能完全阻遏外源基因的表达，会产生本底水平泄漏。

The study of taxology and ecology of sub-aerial blue-green algae of Neimenggu was comparatively deficient in the past. As a result, my research will supply datatostudy the particular function of sub-aerial blue-green in terrestrial ecosystem.

目前国内学者对内蒙古亚气生蓝藻的分类及生态研究较少，因此这一课题有其特殊的理论价值和应用前景，为进一步探讨亚气生藻类在陆地生态系统中的详细功能提供了本底资料。

The linear relationshipof thermoluminescent responses between the exposure ranging from 1 mRto 10 R can be demonstrated.

若将经不同低剂量照射的氧化铍元件在正常本底、一般室温下存放一个月，低达1毫伦的信号还能探测出来。

Objective To establish a sensitive, simple to use and low noise nested/multiplex PCR for simultaneously detection of Plasmodium falciparum and Plasmodium vivax.

摘要目的建立简便、灵敏、低本底、可同时检测恶性疟原虫和间日疟原虫的套式/多重聚合酶链反应系统。

A compartmented soil-glass bead culture system was used to investigate characteristics of arsenic accumulation in iron plaque and in mature rice plants irrigated using water with arsenic in greenhouse.

采用土壤-玻璃珠联合培养的方式，选择2个氧化能力不同的水稻品种YY-1、94D-64和采自浙江富阳的土壤(砷的本底值为13.8 mg.kg-1)，并设灌溉清水和含砷水2个处理(即在分蘖期、拔节期、孕穗期、开花期和灌浆期5个生育阶段灌溉含砷污水，随灌溉水进入土壤中砷的浓度为3.2 mg.kg-1)，研究了砷在土壤-根表铁氧化物-水稻系统中的累积规律以及土壤和灌溉水对水稻秸秆和籽粒富集砷的贡献程度。

A compartmented soil-glass bead culture system was used to investigate characteristics of arsenic accumulation in iron plaque and in mature rice plants irrigated using water with arsenic in greenhouse. Arsenic was supplied as a solution of Na3AsO4·12H2O at the following stages: tillering, stem elongation, booting, flowering and grain filling.

采用土壤-玻璃珠联合培养的方式，选择2个氧化能力不同的水稻品种YY-1、94D-64和采自浙江富阳的土壤（砷的本底值为13.8 mg·kg-1），并设灌溉清水和含砷水2个处理（即在分蘖期、拔节期、孕穗期、开花期和灌浆期5个生育阶段灌溉含砷污水，随灌溉水进入土壤中砷的浓度为3.2 mg·kg-1），研究了砷在土壤-根表铁氧化物-水稻系统中的累积规律以及土壤和灌溉水对水稻秸秆和籽粒富集砷的贡献程度。

Inside the chamber, the base pressure can be lowered to 6.4×10~(-6) Pa, and the total leakage and outgassing rates in 12 hours is below 1.5×10~(-8) Pa·m~3/s.

通过真空清洗和必要的加热处理，目前真空室的本底压强可达到6.4×10~(-6) Pa，12小时内的总出气率小于1.5×10~(-8) Pa·m~3／s。

In the early days avidin extracted from the egg, this egg avidin-alkaline-glycoprotein, and the adsorption of polystyrene carrier highly for ELISA in the background can increase.

在早期，亲和素从蛋清中提取，这种卵亲和素为碱性糖蛋白，与聚苯乙烯载体的吸附性很强，用于ELISA中可使本底增高。

Moreover, their optimum excitation wavelength and emission wavelength are studied and chosen. The fluorescent property of carbaryl and metolcarb in different pH was studied, and the working curve was established according to the optimized experiment condition.

研究了农药的分子结构与其自然荧光特性关系，实验研究了这几种农药的激发光谱、荧光光谱特性以及本底溶剂的荧光光谱特性，研究并选择了它们的最佳激发和荧光发射参数，实验研究了不同pH值下西维因、速灭威等农药的荧光特性，测定了农药工作曲线。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。