Some can be accomplished by machine, others are better performed by hand.

有些可以让机器帮忙，有些只有手工制作效果才好。

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The hat is made by hand not by machine.

这顶帽子是由手工而不是机器做的。

youdao

Look! This is made by hand, not by machine.

瞧！这是手工制作的，而不是机器做的。

youdao

You could contrast the roguish and fanciful, clearly done by hand, title of the magazine, with that machine-type Blast.

你们可以把这些明显手写的，无赖而稀奇的标题，和机械化的“暴风“相对比。

耶鲁公开课 - 现代诗歌课程节选

Nintendo sank into a loss the previous fiscal year largely because of price cuts for its hand-held 3DS game machine, which shows three-dimensional imagery without special glasses.

NPR: Nintendo Chief Rules Out Price Cuts For Wii U

The Vscan is not science fiction but a hand-held ultrasound machine with a scanning wand attached, which has been approved for use in Europe and North America.

BBC: How the hand-held ultrasound scanner works

In some parts of the US it is easy to set up in business as a fee-charging ATM provider, all you need is a few hundred dollars for a second-hand cash machine and an electronic link to the cash machine network.

BBC: NEWS | Business | UK 'risks' US-style bank charges