valve

noun/vælv/CEFR B1

ভালভ (গ্যাস বা তরল চলাচল নিয়ন্ত্রক যন্ত্রাংশ)

Meaning

A part in an engine that opens and closes to control the flow of gas or liquid.

The engine valve controls the flow of air and fuel.ইঞ্জিনের ভালভ বাতাস ও জ্বালানির প্রবাহ নিয়ন্ত্রণ করে।
A leaking valve reduced the engine's power.ফুটো ভালভের কারণে ইঞ্জিনের শক্তি কমে গেল।

A surgeon can open a heart, replace a valve and close it again, and a machine can photograph the inside of a living body without cutting it.
Wonders of Modern Science →
In a four-stroke engine it turns at half that speed — each valve needs to open once for every two turns of the crank, which is why the timing belt's pulleys are of different sizes.
camshaft — dictionary →
In a petrol engine the throttle is a valve that opens or chokes the flow of air — the name means to choke — and the fuel is metered to follow the air. That is why a blocked air filter feels like a loss of power.
throttle lever — dictionary →

noun/vælv/CEFR B1

ভালভ (গ্যাস বা তরল চলাচল নিয়ন্ত্রক যন্ত্রাংশ)

A part in an engine that opens and closes to control the flow of gas or liquid.

The engine valve controls the flow of air and fuel.ইঞ্জিনের ভালভ বাতাস ও জ্বালানির প্রবাহ নিয়ন্ত্রণ করে।
A leaking valve reduced the engine's power.ফুটো ভালভের কারণে ইঞ্জিনের শক্তি কমে গেল।

A surgeon can open a heart, replace a valve and close it again, and a machine can photograph the inside of a living body without cutting it.
Wonders of Modern Science →
In a four-stroke engine it turns at half that speed — each valve needs to open once for every two turns of the crank, which is why the timing belt's pulleys are of different sizes.
camshaft — dictionary →
In a petrol engine the throttle is a valve that opens or chokes the flow of air — the name means to choke — and the fuel is metered to follow the air. That is why a blocked air filter feels like a loss of power.
throttle lever — dictionary →