British nationals need a visa to enter mainland China, but not Hong Kong or Macao. For mainland China, you must get a visa prior to arrival, including for Hainan Island. For details of entry requirements to China contact the nearest Chinese Embassy or Consulate in good time before your proposed trip.Check your visa validity carefully.Donât overstay your visa or work illegally.or mainland China, you must get a visa prior to arrival, including for Hainan Island. For details of entry requirements to China contact the nearest Chinese Embassy or Consulate in good time before your proposed trip. Check your visa validity carefully. Donât overstay your visa or work illegally.
Best Answer - Chosen by the Asker. A stair refers to the individual step. A stairway and staircase mean the same thing and refer to a set of stairs between one floor and another. This usually refers to an open or semi-open set of stairs such as in a house. A stairwell usually refers to a set of stairs that are surrounded by walls, such as an emergency exit in an office building, hotel, or school.
The terms run and rise refer to the measurements for each individual stair. The ideal slope is 30-35 degrees. As a rule of thumb, if you use a 7-inch rise and 11-inch run for each step, that slope should be simple to maintain. Most codes require a 3-foot passage width, but you can make them wider. The parts of the stairs you walk on are called treads, while risers take their name from the rise measurement.