... pressure-creosoted ==> 加压浸油 pressure-defined chamber ==> 压力调制室 pressure-demand oxygen equipment ==> 增压和断续供氧设备 ...
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A sheath (30) closes the opening (18) and embraces an inner portion of the plunger (25), whereby pumping chamber (33) is defined between the pump body (11) and the sheath (30).
一外壳(30)封闭开口(18)并包围柱塞(25)的内部，由此在泵本体(11)和外壳(30)间限定一增压室(33)。
Said inhalator comprises a substance reservoir chamber (27) and a metering chamber (34) receiving a defined amount of the substance.
所述 吸入器包括接收有限量物质的配量室（34）和物质存储室（27）。
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