نمایش نتیجه 1 تا 3 از 3 نتیجه یافت شده برای stopcock:
n: graduated glass tube with small opening and stopcock used for delivering measured quantities of liquid or for measuring liquid or gas received or discharged.
بورت
n: a valve that shuts off or regulates fluid flow. v: to shut in intermittently to allow a build-up of gas pressure in a producing oilwell, which thus effects more efficient recovery.
باز و بسته کردن تنا و بی چاه
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