Multiple V-ring packing, combined with live loading, maintains packing compression under high-cycle and severe service applications.

多重V形环填料，组合动负载，维护填料压缩，适用于使用频率高，环境严酷的应用场合。

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The experiments of twist-compression forging and unsymmetrical V-shape die forging are made using plasticine.

此文用塑性泥作模拟材料，进行了压扭复合锻造和不对称V型砧拔长的工艺实验。

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V-packings: Self-adjusting, spring-loaded, double V-packings maintain constant high pressure seal compression and extend seal and plunger life.

密封：自动调节，弹簧底座，双层V-密封维持高压密封和延长密封与柱塞寿命。

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And you only have to look under the hood or crawl beneath the car to see a technological nightmare: A low-compression flathead V-8, cloth wrapped wires, a crude carburetor, leaf springs and no shocks, big mechanical brakes that were about as useful as an anchor, and a differential the size of a melon, to appreciate that this car was a polluting, rattling, death trap.

FORBES: The Coupe Coup