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

If you want to have an infinitestimally small change, you end up writing dh is dq sub p.

这是对于有限的变化而言的,如果是一个无限小的变化。

麻省理工公开课 - 热力学与动力学课程节选

And in sub-Saharan Africa, where only four percent of the land is irrigated, buying a small pump can make a big difference.

VOA: standard.2010.08.09

To test this out I set up a monitored list of mobile experts using a small sub-set of keywords.

FORBES: Connect

The Paradigm Signature SUB 25 looked small enough in the back of the freight truck, but by the time it was at our front door, all 150-pounds of it seemed appropriately intimidating.

ENGADGET: Paradigm SUB 25 subwoofer hands-on HD

Petersburgopens to guests on August 1, 2013 and is part of Four Seasons Historic Hotels, a small sub-collection within the famous luxury brand that includes unique and architecturally important heritage hotels in Europe, set in buildings dating from the fifteenth to the early twentieth centuries.

FORBES: Four Seasons To Open Latest Hotel Within Palace