Marine bronze external screwed draw-off cocks
GB/T599-1996船用外螺纹青铜泄放旋塞
a small cock or faucet or valve for letting out air or releasing compression or draining.
放出空气或浓缩或排泄的小栓或旋塞或阀。
CYLINDER BLOCK COOLANT DRAIN PLUG
汽缸体冷却剂放油旋塞
crankcase oil drain cock
曲轴箱放油开关［旋塞］
gas filter drain cock
煤气过滤器放水旋塞
Research on Barrage Effect for Level Rotary Internal Energy Dissipation Discharge Tunnel;
水平旋流内消能泄洪洞的阻塞效应研究
If it does not drop but there is a small leakage at test cock No.2, then No.1 ball valve has a small leak, but No.1 check valve is tight.
如果水柱没有下降，但是测试旋塞2号有点泄漏，则1号球阀有点泄漏，但是1号止回阀密封紧密。
If it does not drop, but there is slow leakage at test cock No.3, then No.1 ball valve has a small leak, but No.2 check valve is tight.
如果水柱没有下降，但是测试旋塞3号有点泄漏，则1号球阀有点泄漏，但是2号止回阀密封紧密。
water ga(u)ge cock
水量表旋塞，示水位旋塞
3-Way Plug Valve 1;3-Way Plug Valve 2;3-Way Plug Valve 3
向旋塞阀 1;3 向旋塞阀 2;3 向旋塞阀 3
discharge from safety and relief valves
由安全阀和泄压阀泄放
If it slowly drops and simultaneously runs out through test cock2, the check valve No.1 is leaking and must be serviced.
如果水柱慢慢下降，并且同时通过测试旋塞2号排出，则止回阀1号泄漏，必须维修。
If it slowly drops and simultaneously runs out through test cock No.3, check valve No.2 is leaking and must be serviced.
如果水柱慢慢下降，并且同时通过测试旋塞3号排出，则止回阀2号泄漏，必须维修。
Tighten the radiator draincock and (if removed), the cylinder block drain-plug.
旋紧散热器排放口和汽缸体排放塞（如果它被卸去了）。
cock,for fitting into bung holes of casks or barrels
塞入桶或圆筒口的旋塞
air shut-off cock
(制动机)截断旋塞
Open upstream slowly, fill the valve and bleed the air through Test cock 2, 3 and 4.
慢慢开启上游，注满阀门，通过测试旋塞2，3和4号排放空气。
Bleed test cocks No.2,3 and4 to remove any trapped air.
排放测试旋塞2号，3号和4号，排除所有残存的空气。