In practice ,a rotor weighing about 10 tons and rotating at 3,000 r .p . m . may be so well balanced that the motion ,except for sound ,is just perceptible.

实际上，一根据重约10吨、每分钟3000转的转子可以平衡得非常好，以致除了响声外，人们几乎觉察不出它是在转动。 [分析]此处just =almost not, hardly 曾误译为“正好觉察得出……”，这样意思就反了

youdao

This contrlaw is for 250 metric tons of groundnuts near the RMB1800 per M/T C&F Copenhagen.

这是一份250吨花生的合同，价钱为每公吨哥本哈根基钱加运费价1800元。

youdao

This contrprocess is for 250 metric tons of groundnuts next to RMB1800 per M/T C&F Copenhagen.

这是一份250吨花生的合同，价钱为每公吨哥本哈底子钱加运费价1800元。

youdao

There's going to be tons of bands. I'm your MC, in fact.

会有好多的乐队。其实，我就是主持。

请记住我 - SpeakingMax英语口语达人

I'm guessing it'd be tons.

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