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  2. Academic ranks in Malaysia - Wikipedia

    en.wikipedia.org/wiki/Academic_ranks_in_Malaysia

    Guru Penolong Kanan (Assistant Principal/Headmaster) of primary and secondary school. Sometimes it can be referred as Timbalan Pengetua or Penolong Pengetua. Ketua Bidang (Headteacher) of an academic field in secondary school. It can be referred sometimes as Ketua Jabatan (Head of Department). Ketua Panitia (Course Leader) in primary and ...

  3. Geosynthetics - Wikipedia

    en.wikipedia.org/wiki/Geosynthetics

    Geotextile sandbags protected the historic house Kliffende on Sylt island against storms, which eroded the cliffs left and right from the sandbag barrier. [1] Geotextile sandbags can be approximately 20 m long, such as those used for the artificial reef at Narrow Neck, Queensland.

  4. Raw material - Wikipedia

    en.wikipedia.org/wiki/Raw_material

    Sulfur at harbor in North Vancouver, British Columbia, ready to be loaded onto a ship Latex being collected from a tapped rubber tree. A raw material, also known as a feedstock, unprocessed material, or primary commodity, is a basic material that is used to produce goods, finished goods, energy, or intermediate materials that are feedstock for future finished products.

  5. Chemical substance - Wikipedia

    en.wikipedia.org/wiki/Chemical_substance

    Colors of a single chemical in different solvents, under visible and UV light, showing how the chemical interacts dynamically with its solvent environmentIn addition to the generic definition offered above, there are several niche fields where the term "chemical substance" may take alternate usages that are widely accepted, some of which are outlined in the sections below.