All steroids contain a skeleton of 17 carbon atoms organized into four rings.

We shall concentrate our attention on three groups: the fats, the phospholipids, and the steroids.

我们着重注意以下三类: 脂肪 、 磷脂和类固醇化合物.

This result is obtained mainly by consideration of the four-ring molecules derived from steroids.

这个结果主要是通过从甾族化合物中取得的四环分子得到的.

Sammy: What do you think of steroids in baseball?

山米: 你怎麽看棒球界用类固醇这件事?

Many agents such as Vitamin A, some steroids, and some drugs are membrane-active.

很多药物,如维生素A 、 某些类固醇以及某些药是“膜活性的”.

The use of steroids is controversial.

激素的应用是有争议的.

His field of expertise was steroids.

他的专业领域是甾族化合物.

Endocrine examination, water 17 ketone sterol, water 17 hydroxide steroid is normal.

内分泌检查, 尿17酮类固醇 、 尿17羟类固醇正常.

Seroids, and the closely related sterols, are compounds found in animals and plants.

甾类和与它密切相关的甾醇是在动物和植物中存在的化合物.

Insects need an external source of sterols.

昆虫需要外界来源的固醇类.

Stet 1 : Read the passage quickly, and try to get the main idea the passage.

目的: 通过快速阅读, 让学生了解文章的大意.可以训练学生的阅读速度及语言概括能力.

The soldiers kept in stet in step until they reached the foot of the mountain.

战士们齐步走到山脚下.

Later, Laennec built a hollow wooden cylinder and named it the stethoscope.

后来, 他做了个空心木圆筒,名之为[听诊器].

He instructed his young assistant, Jessie Reynolds , to put up her stethoscope and do the same.

他听了多丽丝·贝里的心搏,并指导他的年轻助手杰西·雷诺兹戴上听诊器也听一听.

Let me listen to your chest with the stethoscope.

让我用听诊器听听你的胸部.

Listen to entire inspiration and expiration at each stethoscope position.

每一听诊部位听诊均应呼、吸完整.

The obvious importance of a stethoscope for physical examination should need no explanation.

很显然,体格检查时听诊器的作用非常重要.

The readings of stethoscope doppler reflect blood flow within artery of transplant precisely.

超声多普勒听诊检查结果准确地反映了移植瓣动脉的血流状态.

Diagnostic studies included scrotal scan, Doppler stethoscope or color duplex ultrasonogram.

而诊断的方法可使用核医阴囊扫描, 杜卜勒听诊器或彩色杜卜勒超音波检查.

Just ten years ago, I sat across the desk from a doctor with a stethoscope.

十年前的一天, 我坐在一名手持听诊器的医生对面.

The doctor is examining his heart with the help of a stethoscope.

医生正在用听诊器检查他的心脏.