Of course a lot of things are tough on women who still, despite all that progress, do more than their share of housework despite – in many cases – working for a living, too.

当然，尽管已有些许进步，对于须分担更多家务的女性来说，在维持生计方面仍存在许多艰难。

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Progress of the research in field ionization gas sensor was investigated and there are still some disadvantages: high working voltage, bad selectivity and stability.

在对国内外场致电离气体传感器研究进展进行详细调研的基础上，发现它始终存在着工作电压高、选择性差和稳定性差问题。

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The theoretical study for drilling string has been in progress for many years, but the real working state of drilling string still remains to be solved.

对钻柱在井下的受力状况已进行过许多理论研究，但对钻柱在井下的实际工作状态的研究还不多。

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