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测试键盘是一个简单而艰苦的过程。为了对所有按键进行全面测试，需要时间和最大的谨慎。如果在测试后发现故障，则值得修理损坏的键盘或购买新的键盘。如果在文本编辑器中，经过测试的键不能完全起作用，而是在测试期间起作用，则表明您的软件存在问题。

At the guts of understanding how fires start off is the notion from the fire triangle. A fire needs a few factors to ignite and maintain alone: heat, gas, and oxygen. Taking away any one of these parts will extinguish the fire.

키보드의 버튼을 누르고 제대로 작동하면 해당 가상 레이아웃의 모니터 화면에서 눌렀을 때 파란색으로 강조 표시되고 흰색으로 칠해집니다. 버튼이 고착되어 작동이 반복되면 파란색으로 칠해집니다.

The unburnable reliable remains of a combustible substance still left after a fire is termed clinker if its melting stage is underneath the flame temperature, to ensure it fuses then solidifies mainly because it cools, and ash if its melting place is over the flame temperature.[fifty three]

fire, rapid burning of combustible substance with the evolution of warmth and typically accompanied by flame. It is among the human race’s vital equipment, Charge of which helped start it on The trail towards civilization.

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Familiarity with fire, resulting from its uncomplicated manufacturing by flint and metal, phosphorus matches, or electrical energy, has led fashionable civilizations to consider fire as a right. However, equally as the First control of fire was necessary to the event of human beings from Aged Stone Age hunters from the tropical forests into the 1st village-dwelling farmers from the Neolithic, so fire has long been crucial at each individual phase of The expansion of civilization during the succeeding 10,000 click now several years.

Heat: Heat could be the Power supply that initiates the fire. It raises the temperature of the gas to its ignition issue. Sources of warmth is usually something from a little spark to a bigger flame or perhaps environmental warmth in the case of spontaneous combustion.

Diverse flammable fuels capture fire at diverse temperatures. It requires a particular quantity of warmth Strength to alter any distinct substance right into a fuel, and more heat Electrical power to result in the response with oxygen.

An additional human use for fire with reference to landscape administration is its use to clear land for agriculture. Slash-and-burn up agriculture remains common across Considerably of tropical Africa, Asia and South The us. For little farmers, controlled fires are a hassle-free technique to clear overgrown areas and release nutrients from standing vegetation back to the soil.[29] On the other hand, this useful technique is likewise problematic.

 Below, foodstuff is cooked inside a cauldron over fire in South Africa. From the Neolithic Revolution, during the introduction of grain-based agriculture, persons all over the globe made use of fire for a Device in landscape management. These fires ended up normally managed burns or "amazing fires", instead of uncontrolled "warm fires", which hurt the soil. Hot fires demolish plants and animals, and endanger communities.

The ancient Greeks thought of fire among the main aspects during the universe, alongside water, earth and air. This grouping would make intuitive feeling: You'll be able to come to feel fire, the same as you can experience earth, drinking water and air. You may also see it and odor it, and you may go it from put to position.

Extinguishing Techniques: They may be ideal extinguished by smothering the flames with foam or dry chemical extinguishers to chop from the oxygen offer.