base section

基本解释

The total beam and semi-beam are connected into cross beam with pin , and connect with base section.
整梁，半梁由銷軸連接成十字架，與基礎節相連。
Furthermore the burner membrane uninterruptedly flows over from the base section through the transition region into the closing section.
竝且燃燒室膜片是無間斷地由底部段通過過渡段進入封閉段。
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The shape of the membrane is such that the smallest radius of curvature of the transition zone is smaller than the smallest radius of curvature of the base section.
燃燒室膜片的形狀是這樣的，使過渡區的最小曲率半逕小於底部段的最小曲率半逕。
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However, in this case, the three lenses have color detail around them which makes them look anything but sinister, and the circular base section might look a little large, but in fact it's light in the hand -- and actually helps it sit quite comfortably atop a helmet.
ENGADGET