Out of 40 countries in sub-Saharan Africa, 28 countries have yet to establish national quality systems.

在撒哈拉以南非洲的40个国家中，有28个国家尚未建立国家质量系统。

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Measures will be implemented to strengthen sub-national surveillance, to ensure that all groups and areas, particularly high-risk populations, are covered by high-quality surveillance.

用以加强次国家级监测的措施也将得到执行，以确保高质量的监测可覆盖到所有人群和地区，尤其是高危人群。

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If the quality department inspect the item and find it to be sub-standard, then a replacement or refund can be issued to the customer.

如果说质检部门检验这个产品后发现是不合格产品，就会像客户送去一个新品或者予以退款。

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Corn harvests remain small. The researchers say farming methods in Sub-Saharan Africa need to improve or else poor quality soil will increase rural poverty.

VOA: special.2009.07.28

It has also, often, led to uneven and imbalanced improvements of sub-systems of general education quality.

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Fragmentation of sub-systems of general education quality has often led to inherently inconsistent and sometimes contradictory policies, strategies and programs.

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"Being a sub-committee of the Care Quality Commission isn't independence, " he said.

BBC: Peers fail in bid to strengthen NHS patient watchdog