这种总成应该由两个正向密封止回阀， 两边夹着两个弹性阀座关闭阀， 并配置一个液压平衡旁路管线和四个测试旋塞构成。
The assembly shall consist of two positive seating check valves located between two resilient seated shutoffs with a hydraulically balanced bypass line and four test cocks .
本实用新型形成滚刀总成重心平衡结构，确保了同一加工件获得均匀一致的铣刮表面。
In the utility model, a hob assembly gravity center balance structure is formed, thus ensuring that the same machined part can have a uniform milling surface.
由此，本文大胆提出了新的战略目标-即寻求总成本(包括时间成本)和服务质量的平衡点。
Then present the new strategic goal: search for the equilibrium point of total cost and service quality.
很明显，第二个盈亏平衡点是优于一是由于其较高的质量，并降低总成本看，在图。
It is clear that the second break-even point is better than the first one due to its higher quality and lower total cost as seen in Fig.
供应链管理的目标就是在于提高用户服务水平和降低交易的总成本，并且寻找两个目标之间的平衡。
The goal of the supplies management is to raise level of the users' service and reduce the cost of total transaction, and seeks the balance between them.
在永续存盘制度下，商品存货和销售货物的成本帐户通常显示存货和一段时间内销售货物的总成本的平衡。
Under the perpetual inventory system, the Merchandise Inventory and Cost of Goods Sold accounts will always show the balance of merchandise on hand and the total cost of goods sold for the period.
在永续存盘制度下，商品存货和销售货物的成本帐户通常显示存货和一段时间内销售货物的总成本的平衡。
Under the perpetual inventory system, the Merchandise Inventory and Cost of Goods Sold accounts will always show the balance of merchandise on hand and the total cost of goods sold for the period.
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