通过向焦煤中加入添加剂的方法在实验室炼制出含有不同铅锌化合物的焦样,并用热重的方法对焦样进行了反应性试验。
The coke sample were produced through add the additive to coke coal before the carbonized in the furnace, and carried out the coke reactivity test with thermogravimetry.
加拿大早在1944年就开始了核项目,1947年它建造了第一台试验性的核反应堆。
Canada began its nuclear program as early as 1944 and built its first experimental reactor in 1947.
他运用了一些心理学试验,这些试验显示,研究对象对一定梯度的条件性危险信号和条件性安全信号的反应。
He USES psychological tests to reveal the subjects' responses to conditioned danger cues and conditioned safety cues arrayed on a gradient.
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