At its type section in the Jiyang Depression, the member 4 can be divided into the upper, middle and lower sub-members.

沙四段在其建组剖面分为沙四上、中和下三个亚段。

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And lower case q sub 2 is the charge on the electron.

小写q加个下标2是指电子所带电量。

麻省理工公开课 - 固态化学导论课程节选

It shows that young people need the skills taught at primary and lower secondary school to find decent jobs.. In sub-Saharan Africa, about 30 million children are still missing out on primary school and 22 million teenagers are out of secondary school, missing out on vital skills for future employment.

UNESCO: One third of young people in Sub-Saharan Africa fail to complete primary school and lack skills for work | United Nations Educational, Scientific and Cultural Organization

His government sacked four members of parliament from their sub-cabinet posts for voting against the bills in the lower house.

ECONOMIST: The hidden beauty in a heated battle

In sub-Saharan Africa, the gross enrolment ratio for girls in lower secondary education is 39% compared to 48% for boys.

UNESCO: World Water Assessment Programme (WWAP)