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The assembly sequence planning method is presented, where the assembly information model is established with the polychromatic sets, and the assembly constrains relations are divided into three kinds, locating relation, obstructing-disassembly relation, a
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摘要在新的装配序列规划方法中，采用多色集合建立了装配信息模型，把装配约束关系分为定位关系、阻碍拆卸关系和联接关系，建立了装配约束关系方程－定位方程、阻碍拆卸方程和联接关系方程，用数学方程表示零件的装配约束条件，同时提出了求取零件装配序列的算法。 |
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The assembly shall be a Watts Regulator Company Series 774.
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这种总成应该是美国瓦茨调节阀公司的系列774。 |
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The assembly shall be a Watts Regulator Company Series 774DCDA.
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这种总成应该是美国瓦茨调节阀公司系列774DCDA。 |
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The assembly shall consist of a corrosion resistant plastic bodied relief valve located in a zone between two positive seating check modules with captured springs and silicone discs.
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这种总成应该包括一个耐腐蚀塑料阀体安全阀，位于两个配置复位弹簧和硅酮阀瓣的正面密封止回阀模块之间的区域。 |
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The assembly shall consist of a pressure differential relief valve located in a zone between two positive seating check valves.
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这种总成在两个正向阀座止回阀之间的区域内应该配置压差安全阀。 |
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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.
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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。 |
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The assembly shall consist of two threaded-in check modules with captured springs and silicone seat discs.
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这种总成应该由两个螺纹旋进、配置复位弹簧和硅酮阀座阀瓣的止回阀模块构成。 |
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The assembly shall have a electroless nickel-plated tubular copper body.
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这种总成应该具有非电镀镀镍层管状铜阀体。 |
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The assembly shall have an electroless nickel-plated tubular copper body.
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这种总成应该采用非电解镍镀层铜阀体。 |
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The assembly shall have top entry access points for each check assembly, screw driver slotted test cocks and require the use of no special tools for servicing.
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这种总成的每个止回阀总成应该有顶部进入口，螺丝刀槽测试旋塞，维修时不需要特殊工具。 |
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The assembly shall include two nickel plated resilient seated ball valve shutoffs and four top mounted test cocks.
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这种总成应该包括两个镀镍弹性阀座球阀关闭阀和四个顶部安装测试旋塞。 |
