这是小管径、低流速系统测量方法上的一个突破。

We think this is an important break-through in testing lower flow velocity in tiny tube .

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在喷头设计中考虑了氧枪内管氧气流速，保证了用氧安全。

The oxygen flow rate was considered for lance designing to guarantee safety operation.

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所述管接 头以不可移除的方式耦合到所述进水阀，且配置有较大的近端通路和用于限制补水流速 的较小的远端计量通路。

The adapter is non-removably coupled to the fill valve and is configured with a larger proximal pathway, and a smaller distal metering pathway for restricting the refill flow rate.

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