You must experiment, reason, think out new devices.
你们必须做实验，推理，想出新方法。
How for example crossed this ridge anything to push only then cannot knock child, then you must experiment, the practice to be only then good personally.
比如说过这个坎儿什么的怎么推才不能把小孩头磕了，那你得亲自试验、练习才行。
When you perform an experiment, you must gather data on the process you use as well as the results of the experiment.
当您执行您的实验时，您必须收集关于您所使用的这个过程的数据和实验结果。
If you make a claim about the results, you must provide enough information that the experiment can be reproduced by another researcher or research team.
如果您大力宣扬您的主张，您必须提供足够的信息证明这个实验能够被其他研究人员或者研究团队来重复试验。
If you know your atoms are inside your experiment, there must be some uncertainty in their momentum keeping them above absolute zero - unless your experiment is the size of the whole universe.
如果你知道在你的实验装置中的原子，它们就必然具有某些动量的不确定性使得这些原子的温度高于绝对零度，不然的话，只有你的实验装置的尺度达到了整个宇宙。
You must finish this experiment (all) by yourself.
你必须独自地完成这个试验。
Once necessary, you must recheck the results of the experiment.
一旦有必要的话，你得将实验结果再核对一遍。
If you want to gain knowledge, you must take advantage of the experiment.
你要想获得知识，你就得利用这个实验。
If these talks are to have any significance for you, you must begin to experiment with what I am saying, and live anew by becoming conscious of all your reactions.
如果要这些谈话对你有意义，你必须开始尝试按我所说的话做，保持对所有反应的觉察，开始全新的生活。
You must do the experiment with great caution.
作实验时务必小心翼翼。
You must give us a hand in our experiment.
我知道戒烟很难，但是你一定不要放弃。
You can experiment with it if you wish; and perhaps you can find out how long a pendulum must be to vibrate once in two seconds.
假如愿意的话，你可以用它来做试验，也许你就会算出，钟摆每两秒钟摆动一次的摆长应该是多少。
Before experiment, you must constitute experimental means and projects according to the aim and request.
实验设计是在实验开始之前，根据一定的目的和要求，制定实验方法和进程计划。
Before experiment, you must constitute experimental means and projects according to the aim and request.
实验设计是在实验开始之前，根据一定的目的和要求，制定实验方法和进程计划。
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