...0年代，控制阀以阀体形状为球形的球形阀(Ballvalve)为主，同时期以V形缺口(V-notch)的单座(Single-ported)和双座(Double-ported)控制阀相继问世。
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The dual-ported RAM is a kind of special memory, and the bus data share between double high-speed microprocessors is carried out by using it.
双端口ram是一种特殊的数据存储芯片，利用双端口ram可以实现双高速单片机总线方式的数据共享。
The FE Series design uses two double acting cylinders that are cross-ported and internally sequenced for smooth functioning parts regulation.
是 FE 系列 的设计使用了两个双作用气缸的是交叉移植和国内各地的顺利运作的监管测序。
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