They are also home to various wildlife, including bison, elk , coyotes, and prairie dogs.

In the year 1700, about 60 million bison wandered freely in North America.

在1700年约有6000万头野牛在北美无拘无束地活动.

Large herds of bison used to live on the plains of North America.

大群的野牛过去曾生活在北美大草原上.

a herd of bison

一群野牛

Objective : To prepare bisoprolol fumarate tablets and to assay the content uniformity and dissolution of tablets.

目的: 制备富马酸比索洛尔片,并测定其含量均匀度和溶出度.

To evaluate effects of selective Bisoprolol on baroreceptor in patients with heart failure secondarycardiomyopathy ( DCM ).

探讨比索洛尔治疗心力衰竭时对对压力感受器功能的影响.

A new type of modified epoxy resin was obtained by modifying bisphenol resin using organic silicon.

用氨基硅油和双酚A型环氧树脂为原料合成一种新型的环氧树脂.

Bisphenol A is also used to make materials found in dental composites and sealants.

双酚A也是制作牙具和密封剂的原料.

Major Composite of thc SeaIant is bisphenol A epoxy resin, dicyandiamide, ureido compound and modifier etc.

以双酚A环氧树脂 、 双氰胺 、 脉及改性材料为主要成分配制的胶粘剂可在中温迅速固化.

The structure and principle of a high efficiency evaporator thin filmof bisphenol-A type epoxy was recommended.

介绍了一种高效蒸发设备——刮板薄膜蒸发器的结构、原理以及在双酚A型环氧树脂生产中的应用情况.

This article introduced bisphenol A polycarbonate resin and brought forward the requirement to domestic institute.

介绍了国内外聚碳酸酯合金的开发情况,并对国内研究机构提出了要求.

Early exposure to a low dose of bisphenol A affects socio-sexual behavior of juvenile female rats.

早期暴露在低剂量双酚A下会影响幼龄母鼠的社群 — 性行为.

Objective To study the effects of bisphenol A ( BPA ) on the immune system in mice.

目的了解双酚A对小鼠免疫系统的影响.

The tetrabromobisphenol a new kind of flame retardant is prepared bromination of bisphenol A.

四溴双酚A是 一种用途较多的新型阻燃剂,可用双酚A经溴化合成.

Objective To develope the determination methods for bisphenol A in drinking water system components.

目的建立输配水材料中双酚A的测定方法,并测定饮水输配水材料中双酚A含量.

The most common epoxies are those made from the reaction of bisphenol A with epichlorohyrin.

最平常的环氧由双酚A和环氧丙烷反应而成.

We have thoroughly researched polycarbonate and Bisphenol A . All.

我们已经十分彻底地研究过聚碳酸酯及双酚A了.

Bisphenol A is a chemical widely used to make hardploycarbonate, polycarbonate plastic.

双酚A是一种广泛应用于制造耐用的聚碳酸酩塑料.

Of all EDCs, Bisphenol A ( Bpa ) is very important one.

双酚A ( bisphenolA, Bpa ) 是其中重要的一种.

The transitions of bisphenol A and phenolphthalein oligo -- polysulfones were inves-tigated by DSC.

本工作用示差扫描量热法(DSC)研究了双酚A型和酚 酞 型两种聚砜预聚物的转变.

Bisphenol A is a chemical widely used to make hard , polycarbonate plastic.

双酚a型环氧树脂是一种生物的广泛用于制造耐用的聚碳酸脂塑料.