First close manual shutoff located before the fill-valve, then draw system pressure down to 12psi (or other preset pressure) and observe system for pressure buildup several hours later.
首先关闭位于进水阀之前的手动关闭阀，然后将系统压力降到12psi(或其他预设压力)，几个小时后，观察系统的压力上升状态。
Installed in a mainline it prevents upstream pressure from dropping below a preset minimum. Solenoid override of the sustaining function allows for electrical on-off operation.
安装在主管线内，防止上游压力降到预置最小压力以下。电磁阀的过载平衡功能使其能够进行电气开-关操作。
Because of the dual-orifice design, there is a preset controlled pressure differential for the secondary steam system, while maximum pressure differential is available to discharge the condensate.
由于采用了双阀孔结构设计，在最大压差下排放凝结水的同时，还有一个为二次蒸汽系统设计的预设压差系统在工作。
The jacked pile, as one of the types of pile foundation engineering, overcomes the resistance of soil and sinks to the preset level by less static pressure while affording a larger bearing capacity.
压入式沉桩是以较小的静压力，使桩克服土体的阻力，把预制钢筋混凝土桩沉入预定的标高，从而获得较大的承载力的桩基工程。
The intensity of the grinding is determined by the speed of the machine and the preset grinding pressure.
打磨强度是由机器速度和预置打磨压力决定。
The Model 25 Reversing Relay is designed for applications requiring an output that equals a manually preset spring load minus a variable signal pressure.
该型号25逆转继电器是专为应用程序要求的输出，等于减去一个变量信号压力手动预设弹簧负载。
Common form of the pressure switch, volume switch, time switch and flow switch, that is, to achieve the preset inspiratory pressure, capacity, time or flow rate is converted to breath.
常见的方式有压力切换、容量切换、时间切换和流速切换，即吸气达到预置的压力、容量、时间或流速则转为呼气。
This pneumatic relay provides high output flow at an output pressure that represents the input signal pressure plus a preset bias.
这种气动继电器输出提供了压力，表示输入信号压力加上预设的偏见高输出流量。
Pressure regulators are connected to the outlet side of the water heater to keep the water pressure from exceeding a preset limit as it exits the tank.
压力调节器连接的电热水器出口侧的出口保持水箱的水压力超过预设的限制，因为它。
On a preset volume-pressure-limit ventilator with 5L fresh gas flow, the children were mechanically ventilated.
用听诊法和荧光检查法确定导管位置，以5L流量新鲜气体，用预设容积的定压式呼吸机行机械通气。
Advanced preset pull rod for pressure rod was assembled on the mould to improve the deformation of the housing and reduce the housing soldering the static container.
其一是在模具上安装顶杆提前回位拉杆，铸件变形的情况得到了改善，铸件抱死在静模的现象也减少。
Advanced preset pull rod for pressure rod was assembled on the mould to improve the deformation of the housing and reduce the housing soldering the static container.
其一是在模具上安装顶杆提前回位拉杆，铸件变形的情况得到了改善，铸件抱死在静模的现象也减少。
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