求翻译：消声器主要由消声筒、消声片、上下封板（或封头）、防雨帽、节流管、节流板、连接管（或法兰）、支座、起吊环、铭牌等零部件组成。是什么意思？

Muffler tube muffler, muffler piece, the upper and lower seal plate (or head), rain cap, choke manifold, throttle plate, the connecting tube (or flange), bearings, starting rings, nameplate, and other parts composition.

muffler mainly by reducing noise and, muffler, upper and lower cover plate (or head), rain hat, cutting tubes, gem cutting, connecting pipe flange), support Block (or 9.787 , notation, and other parts.

The silencer mainly by the noise elimination tube, disappears the sound pictures, about the closing board (or shell cover), the sou'west, the throttle pipe, the throttle plate, the connecting pipe (or flange), the support, spare parts and so on suspension loop, data plate is composed.

Main muffler canister muffler, muffler, upper and lower plates (or head), rainhat, throttle, throttle plates, connection tube (or flange), composed of bearings, rings, nameplates and other parts.