内置式柱塞定量阀是汽―水分离室整体的一部分，完全被蒸汽包围，从而避免了因热辐射造成的冷凝。

The internal plug-type metering valve is an integral part of the steam separator and is completely steam-jacketed to prevent condensation through radiation.

youdao

一加强套筒(47)位于凹槽(45)中，由此一腔室限定在加强套筒(47)和柱塞(25)之间。

A reinforcement sleeve (47) is located in the recess (45), whereby a cavity is defined between the reinforcement sleeve (47) and the plunger (25).

youdao

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)。

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).

youdao