A Japanese toy maker will launch a karaoke machine measuring mere 7cm this year, letting children hone their vocal skills.
日本一家玩具制造商计划推出一款世界上最小的卡拉OK机，让儿童练习唱功。
Luckily, Sam and I still had some time. After more thought, we switched our idea from a superhero machine to an invisible-ink-maker-and-decoder machine.
幸运的是，萨姆和我还有一些时间，经过一番思考后，我们改变了主意，从一个超能机器转为做一个隐形墨水制码解码机。
Sand washing machine is coordinated with sand Maker to separate the sand from stone dust.
用于清洗分离砂石中的石粉泥土，是配合制砂机使用的一种高效洗砂选矿设备。
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