If the results are normal, Pap smears should be done every 3 years until age 30 years.

如果检查结果正常，建议每3年接受一次巴氏涂片检查，直至年满30岁。

youdao

The anode rod should be removed from the water heater tank every 3 years for inspection.

每隔3年时间，就要把阳极棒从热水器内胆上拆卸下来进行检查。

youdao

Continued monitoring is therefore necessary, and we recommend that a review of the type presented here be repeated every 3 years.

因此有必要继续监测，我们建议每三年开展一次援助类型评估。

youdao

These patients have one or two major MS-related problems every one to 3 years.

VOA: special.2009.01.06

"You know, special sections and things so every 3,4,or 5 years you can do something new and exciting and that's every appealing to me.

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The Sections Congress is held every 3 years and leaders from the IEEE sections all over the world come for training, to meet and network with leaders from other IEEE sections and IEEE staff and to discuss and vote on important initiatives for the future of the organization.

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People keep saying where is the innovation since Steve died, but if you look back over the past 12 years, they only introduced a new product every 3-4 years and in the meantime improved on existing products and watched sales soar as products matured.

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That means transferring schools, moving their homes, and leaving their friends every 2 to 3 years.

WHITEHOUSE: Remarks of Dr. Jill Biden at the OJJDP National Conference