TRAVELERS who don’t trust the water from a mountain stream or a hotel-room faucet have often used chemicals or filters to purify it. Now they have a high-tech option as well: swirl the water with a portable, lightweight wand that beams rays of ultraviolet light.
The wand can clean up a quart of water that is clear — but could harbor stomach-wrecking microorganisms — in 90 seconds. The high-frequency light damages the DNA of bacteria, viruses and protozoa in the water like giardia and cryptosporidium so they can’t reproduce and create havoc.
n. - 病毒, 毒害, 濾過性微生物
virus checking 【コンピュータ】ウイルス検査.
virus checking program 【コンピュータ】ウイルス検査プログラム.
virus scanner 【コンピュータ】＝virus checking program.
virus shield 【コンピュータ】＝virus checking program.