我班上的孩子们正在做实验。
正在做实验的那个学生是我们的班长。
他们也正在做实验。
我正在做实验。
教室里，我们正在做实验——烧不坏的手帕。手帕怎么烧不坏呢？别着急，听我娓娓道来。
The classroom, we are conducting experiments - not a bad burn handkerchief. Handkerchief how bad it is not burning? Do not worry, listen to me with his right.
实验室正在做进一步确认。
那年伯查德正在做有关冷冻机隔热材料的实验，实验中他使用新的方法做出一种低密度的泡沫材料。
While Burchard was experimenting with refrigerator insulation, he came up with a novel way of molding low-density foam.
若格林说，”小鸡们正在做非常简单的算术题”。这个实验显示了很多动物的数学能力来自先天而不是经过后天训练的。
This suggests that numeracy is an innate ability in many animals that does not require training.
正在做出安排，将所有4名患者的样本送往世卫组织设在英国的合作实验室进行化验。
Arrangements are being made to send samples from all four patients for testing at a WHO collaborating laboratory in the United Kingdom.
我们正在做化学实验。
正在做这项实验的那位工程师是泥浆工程师。
That engineer carrying out the experiment is a mud engineer.
科学实验中猫的行为表现是否可看作是真正在做梦呢？
Does the behaviour of cats in science experiments actually qualify as dreaming?
那位科学家正在做一个科学实验。
如果你正在做的实验，您可能会问你的伴侣：请你给我的氯化钠？
If you are doing an experiment, you may ask your partner: Would you please pass me the sodium chloride?
我们正在做一个实验。
我们这个星期正在做一个实验。
他们正在做物理实验。
真遗憾我现在回不去，我这几天正在做一个项目，我最近都呆在实验室，像和尚呆在山洞里一样，你现在看到我肯定会被吓到的。
It's so bad Ican't go back right now, I'm in the middle of a project these days, am like a monk in a cave these days in my lab.
真遗憾我现在回不去，我这几天正在做一个项目，我最近都呆在实验室，像和尚呆在山洞里一样，你现在看到我肯定会被吓到的。
It's so bad Ican't go back right now, I'm in the middle of a project these days, am like a monk in a cave these days in my lab.
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