In China, they developed a compact portable ultrasound machine from scratch.

在中国，他们从零开始开发了一款小巧的便携式超声机。

Along with his co-founder, Vidyat developed a small-scale portable machine in the year 2018, that converts agricultural waste into bio-fuel.

2018年，Vidyat与联合创始人共同研发出一台将农业废弃物转化为生物燃料的小型便携设备。

American and British researchers developed portable machines that could transport donor blood onto the battlefields of World War I.

美国和英国的研究人员开发了便携式机器，可以将献血者的血液运送到第一次世界大战的战场上。

At the same time, American and British researchers developed portable machines that could transport donor blood onto the battlefields of World War I.

与此同时，美国和英国的研究人员开发了便携式机器，可以将献血者的血液运送到第一次世界大战的战场上。

You'll hog the table, and worse of all, you'll be guilty of spending way more than you need to for a portable gaming machine.

你会霸占桌子，更糟糕的是，你会因为在便携式游戏机上花费的钱比你需要的多得多而感到内疚。