I am no physicist, but I imagine you have all blown air over the top of an empty bottle and heard the sound it makes.
我不是物理学家，但我想你们都曾往一个空瓶子的顶部吹过气，并听到过它发出的声音。
And don't place an empty bottle on the table - it must be placed on the floor.
不要将空瓶放在桌上，一定要放在地上。
Bring an empty bottle in your carry on to fill at a water fountain and carry on the plane.
那就随身带一个空瓶子，在饮水机上灌满水再带上飞机。
The windlass and the well were made of an empty bottle by me. Though it looked rude, my son and his friend played very happily.
空的饮料瓶被我改装成了辘轳和井，尽管做工粗糙，有糊弄之嫌，但儿子和他的小伙伴却玩的津津有味。
Notes: "child care article" means an empty bottle or cup to be filled with food or liquid that is designed or intended by a manufacturer to be used by a child under the age 4 of years.
备注：“儿童护理品”指设计生产目的是为4岁以下儿童使用的可以盛装食品或液体的空瓶或杯。
When one of our team let an empty plastic bottle fall to the ground, kids wrestled for it as if it were gold.
我们小组中的一个人落下一个空的塑料瓶，孩子们争先恐后的争夺它，似乎它是金子做的。
Take an empty two-liter soda bottle, wash it out, fill it with water, screw the lid on tightly and set it into your toilet tank, as far away from the flapper valve as possible.
拿一个两升的空汽水瓶，洗干净，装满水，旋紧盖子，放进马桶的水箱里，离舌形阀越远越好。
From some laundry receipts, an unfinished letter in the wastebasket, an empty bourbon bottle, and other assorted clues, Steinbeck pieced together a portrait of Lonesome Harry.
从几张洗衣收据，废纸篓中的一封未完成的信，一个空的威士忌酒瓶，以及其他各类线索中，斯坦贝克拼凑出寂寞哈利的形象。
In order to improve the automatic production level of beer packaging production line, an inspection system of empty beer bottle based on DSP and FPGA is designed.
为了提高啤酒灌装线生产自动化的水平，开发设计了一套基于DSP与FPGA的啤酒瓶空瓶检测系统。
Picture an empty wine bottle with a cork secured at the top in the usual way. Inside the bottle a metal ring hangs suspended by a string.
设想一个空酒瓶，瓶口被软木塞以正常的方式塞住，瓶子里一个金属环悬挂在一根细绳上。
What you will need: an empty plastic soda bottle, a small nail, pliers and some water.
实验所需：一个空的塑胶汽水瓶，一根小钉子，钳子和一些水。
The utility model is suitable for people to modify an empty can bottle into a tea cup.
适用于人们将空罐头瓶改装成茶杯之用。
Mr Thomson's descriptive powers are deft: "The air is watery and grey, the colour of an empty milk bottle."
汤姆森的文字富有张力、灵动乖巧：“空气能挤出水来，天空白蒙蒙的，好似空奶瓶的颜色。”
Mr Thomson's descriptive powers are deft: "The air is watery and grey, the colour of an empty milk bottle."
汤姆森的文字富有张力、灵动乖巧：“空气能挤出水来，天空白蒙蒙的，好似空奶瓶的颜色。”
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