降落伞英文单词怎么写的？

The correct spelling of "降落伞" in English is "parachute". A "parachute" refers to a device made of a large fabric canopy attached to harnesses. It is designed to slow down the descent of a person or an object when dropped from an aircraft. The word "parachute" is derived from the French words "para", meaning "to guard against", and "chute", meaning "a fall". Parachutes have been used for various purposes, including military operations, rescue missions, and recreational activities such as skydiving. The design and technology behind parachutes have evolved over the years, incorporating advancements in materials and aerodynamics. They are typically made from strong fabrics like nylon or silk, and they work by creating drag and increasing air resistance to slow down the speed of descent. Parachutes are deployed by pulling a ripcord, which releases the parachute from its pack and allows it to inflate and provide the necessary drag. They are vital safety equipment for activities involving heights or aircraft, ensuring a controlled descent and preventing free falls that could result in injury or even death. In summary, a parachute is a crucial device used for controlled descents, providing safety and stability during activities involving heights or airborne operations.