In the present age of EMS, intelligent management assistance is no longer an option, but a necessity.

在当今EMS时代，智能管理辅助不再是一个选项，而是必需的。

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EMS testing instruments are important instruments in EMC test. However, there are no verification regulation or calibration specification on tne calibration of these instruments.

电磁兼容抗干扰测试仪器是电磁兼容测试中重要的一类测试仪器，但对于这些仪器的校准测试仍然没有圈家计量检定规程或校准规范。

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Pfizer said that while no human studies have been done on the health risks posed by EMS, animal studies have linked it to cancer and birth defects.

辉瑞称，虽然未做过ems的健康危险人体研究，但动物试验已证明其有致癌和致畸作用。

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By that time, Martin had no apparent pulse, according to the fire and EMS report.

CNN: Police: Trayvon Martin's death 'ultimately avoidable'