回流逆流 back flow?
上密封试验 Back seal test
上密封 Back seat
反向压力;反压力 backpressure?
向后传播的波 backward-travelling waves
后涡流 backwash?
卸荷式减压阀 Balanced reducing valve
浮球 Ball float
带状结构 banded structure?
侧向倾斜 bank?
差拍 beat?
波纹管密封阀 bellow sealed valve
上密封试验 Back seal test
上密封 Back seat
反向压力;反压力 backpressure?
向后传播的波 backward-travelling waves
后涡流 backwash?
卸荷式减压阀 Balanced reducing valve
浮球 Ball float
带状结构 banded structure?
侧向倾斜 bank?
差拍 beat?
波纹管密封阀 bellow sealed valve
波纹管式减压阀 Bellows reducing valve
波纹管平衡式安全阀 Bellows seal balance safety valve
波纹管密封式 Bellows seal type
双金属片式疏水阀 Bimetal elements steam trap
切断阀;截止阀 block valve;shut-off valve;stop valve
启闭压差 Blowdown of a safety valve
布尔登压力计 bourdon gage?
裂断强度 breaking strength?
桥接阻抗 bridged impedance
排放背压力 Brilt-up back pressure
浮桶 Bucket float
B-scan presenfation B型扫描显示
B-scope; B-scan B型显示
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