Since scientists like Szostak think RNA preceded DNA they 've invented ways of pushing RNA to evolve in test tubes .

既然像Szostak等科学家认为RNA先于DNA，他们正试图在 试管 内推动RNA发生演变。

Life is being created in laboratories and test tubes .

生命在实验室和 试管里被创造了出来。

Such as : oral liquid bottles ampoules syringes bottles batteries ham sausage test tubes pen lipstick solid plastic bottles .

适用于较小直径的不易站立的物体贴标，如：口服液瓶、安瓿瓶、针管瓶、电池、火腿、香肠、 试管、笔筒、唇膏、固体胶瓶等。

In his lab researchers fill test tubes with the barest ingredients of life then watch the elements self-assemble into what look like primitive cells hoping that they will begin replicating .

在他的实验室内，研究者们在 试管 内装满了生命仅有的成分，然后观察这些元素是如何自己聚集形成看起来像原始细胞的东西，并希望他们开始复制。

They tried it in test tubes containing the parasites .

他们在装有寄生虫的 试管里进行的试验。

Be sure to label all the test tubes .

一定要把所有的 试管都贴上标签。

They used molecular-sized bubbles filled with chemotherapy drugs to prevent cell growth and initiate cell death in test tubes and mice .

他们将化疗药物填入分子大小的泡沫中，在 试管中和小鼠身上来防止肿瘤细胞的生长和启动肿瘤细胞的凋亡。

HGT series dry block heater is popular used in laboratory for heating test tubes and other micro containers .

系列干式恒温器一般作为实验室加热（或恒温） 试管或其它微小容器的常规装置。

By placing sterilized cuttings in test tubes with salts vitamins plant hormones and seaweed gel they got the plants to sprout and then raised them in soil in greenhouses .

把剪好的竹子放入 试管中，与盐，维生素，植物激素，和海藻胶混合，植物发芽了，然后拿出来，把他们放在温室的土壤中。

Upstairs a chemist clad in a white lab coat mixes ingredients in test tubes to develop a new'new car'fragrance for auto interiors .

楼上，身着白大褂之化学家正在 试管中混合原料，开发一种新之汽车内饰香水。

These sheets are rolled up and slipped into test tubes .

再将这些尼龙薄片卷起，装入 试管中。

He demonstrated the principles to his students with chemicals and test tubes .

他用化学药品和 试管给学生演示这些原理。

With regards to our services we provide monthly maintenance services to all of our equipment including cleaning of the conveying belt test tubes and rollers .

在我们公司服务这一方面。我们会每个月对我们的所有设备做一次保养。包括皮带， 试管，滚轴的清洁。

The study was done in test tubes but there 's no need to wait for confirmation & bring on the guacamole !

这项研究是在 试管中进行的，但是，不必等待其确认，食用色拉调味酱即可。

Before you toast the findings remember that the study was done in test tubes .

不过庆祝这个结果之前，你得记住这项研究只是在 试管中进行的。

Neurospora can be grown in test tubes containing a very simple culture medium .

链孢霉可以在含有一种很简单的培养基的 试管中生长。

At the moment he did not want to think about his future or his father or the test tubes in his lab.

这功夫的凯文，既不想琢磨他的未来和他的爸爸，也不想琢磨他实验室里那些 试管。

The test tubes are then washed with genetic material from a wide range of tissue cells that have been labeled with a radioactive dye .

然后将 试管 浸泡在来自各种组织细胞的基因物质中，这些基因物质用放射性染料进行标记。

She washed the test tubes and she dried them .

她清洗了 试管，并把它们弄干了。

Aim To find ways of cutting big glass tubes and new uses of big bottom – broken test tubes in high school chemical experiment and college basic chemical experiment .

目的探求粗玻管的截割方法和破底大（中） 试管在中学化学实验和大学基础化学实验中的利用。

In chemistry courses teachersaccomplish that with test tubes and mysterious liquids .

在化学课上，老师用 试管和神秘的液体试剂来达成这个目的；

The padded urethane cabinet top has a dished compartment for safe placement of test tubes and other blood drawing supplies .

填补乙烷基储存柜顶部带有一个用于安全存放 测试 试管和其他抽血装置的隔间。

The investigators used a combination of experiments with mouse models and test tubes to study the effects of intestinal inflammation on Salmonella and pinpoint the role of tetrathionate respiration .

用一个小鼠模型和 试管合并的试验，科研工作者研究了沙门氏菌引起的肠炎症的效应，精确确认了连四硫酸盐在“呼吸”中的作用。

As the newest and least experienced student in a biochemistry research lab your first few weeks are spent washing glassware and labeling test tubes .

作为无经验的新手学生，在生物化学研究室中，前几周时间花在洗玻璃器皿和贴 试管标签上。

We have Science in the science lab. Life is being created in laboratories and test tubes .

我们在实验室里上科学课。生命在实验室和 试管里被创造了出来。

In test tubes it killed various types of staph and strep as well as anthrax and tuberculosis .

在 试管中，它可以杀死多种类型的葡萄球菌和链球菌，以及炭疽和结核病的病原体。

Another research subject investigates the heat-transfer and pressure-drop performance in three test tubes fitted with single twin and triple twisted-tapes .

另一研究主题探讨 圆 管中嵌入单、双与参扭旋片之热传与压降现象；

Next the researchers pitted the dragon 's blood compounds in test tubes against two foes : ulcer-causing H.pylori bacteria and thrombin a blood-clotting agent .

然后，研究人员将血竭化合物加到 试管中观察其对导致溃疡的幽门杆菌及凝血酶（一种凝血物质）的抑制作用。

Postgraduates for example use disposable test tubes when they do experiments on potentially dangerous heavy metal ions .

比如，研究生们在进行存在潜在危险的重金属离子实验时使用的是一次性 试管。