Under the auspices of Doctors Without Borders, new medical technology has been introduced to many regions in need.
在无国界医生组织的帮助下，新的医学技术已被引入到许多所需的领域中。
Advances and standardization of signaling technology allow trains to run at higher speeds and cross international borders without changing equipment.
先进的和标准化的信号技术允许火车高速通过国境而无需更换设备。
Advances and standardization of signaling technology allow trains to run at higher speeds and cross international borders without changing equipment.
先进的和标准化的信号技术允许火车高速通过国境而无需更换设备。
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