No such mass testing has been done before at a French school, AFP news agency says. The test is voluntary.
法新社称,之前在法国学校从未有过这么大规模的检测。检测是自愿的。
Design and testing of these physical systems rely on standard design practices that employ the laws of conservation of force, mass, and energy.
这些物理系统的测试依赖于对作用力、质量和能量守恒定律的标准设计实践。
Many scientists are already testing different prototypes to put an end to the yearly race to predict coming flu strains and quickly mass produce a new vaccine each flu season.
为了每年不再争分夺秒地去预测将会出现何种流感类型,并且在每个流感季节中都能快速大量生产出新疫苗,众多科学家早开始在试验各种各样的原型疫苗。
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