In the absence of any net external forces - on a system as a whole — - as we discussed last time — the center of mass will always have the same velocity.
在没有外力，作用于整个系统时-，我们上次讨论过-，重心总是，有相同稳定的速度。
The project makes the USB mass storage class host and network terminal compatible in the digital STB, so the system integrates television, network and USB host as a whole.
该数字机顶盒方案成功的将us B大容量存储主机和网络终端和谐融合，使系统集电视、网络、USB主机功能于一体。
This enables ionization of protein complexes as a whole contained in the sample, and enables mass analyses of them.
实现了包含在样本中的蛋白质联合体整体的离子化，并能够对其进行质量分析。
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