If enough molten fuel gathers this way, a critical mass may be assembled, reigniting the fission reaction.
如果以这种方式熔化的燃料足够多，或许能够组成一个临界质量，重新引发裂变反应。
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But until we commit to treating content as a critical asset worthy of strategic planning and meaningful investment, we'll continue to churn out worthless content in reaction to unmeasured requests.
Reaction engines is focusing on a critical piece of technology called a heat exchanger, needed to rapidly cool the air before it can be used by the spaceplane's engines.