A small balloon was sent up first to check the weather.
先发射一只小气球以检测天气。
When the little guests leave, they each get a small present and a balloon.
小客人们走的时候，每人可得到一份小礼物和一个气球。
The idea was to pump a small amount of water up to the balloon and thence out into the air, so as to assess the possibility of spraying out other substances at far greater heights.
气球升空后，实验性地通过输送管在空气中喷洒水，为估计在更高气层中喷洒其他物质的可能性。
I turn on the electric fan, the wind speed up, put my small hot air balloon, hey, little balloon through the power of the wind is suspended in mid-air, a shake and I say "hello"!
我打开电风扇，把风速调到最大，把我的小热气球一放，嘿，小热气球借着风的力量悬浮在半空中，一摇一摇地和我打招呼呢！ ！
A simple airhorn can be constructed by stretching a balloon over the opening of a small container or cup with a tube through the other end (see Figure).
通过把气球套在一个杯子（或者其他的柱状容器）开口上，就可以制作一个号角了。通过小孔吹气，就能响。
Coloscopy is a key method for diagnosis of colorectal CD. Double-balloon enteroscopy is a valuable method for early diagnosis of small bowel CD.
结肠镜检查是末段回肠和结直肠病变最主要的诊断方法，双气囊推进式小肠镜对早期诊断小肠cd有重要价值。
Double-balloon endoscopy, which enables endoscopic observation of the entire small intestine, represents such a new system.
双倍气球的内窥镜检查，使内窥的观察整个小肠成为可能，描述这样的一个新系统。
On 3rd day after balloon injury, a small amount of new endothelial cells were high columnar and nuclear were stain with subintimal bleeding and elastic membrane disruption.
球囊损伤后第3天，可见少量新生内皮细胞呈高柱状、核浓染。内膜下有出血，弹力膜中断。
Investigations found that the balloon, a structure of silver foil-covered tarpaulins held together with string and duct tape, would not have been able to lift even a small child, Alderden added.
调查发现，气球的材料是被银色箔片覆盖的防水帆布，用绳子和胶带捆扎而成。这样的气球根本不可能带着一个小孩子飘到天空中。
Investigations found that the balloon, a structure of silver foil-covered tarpaulins held together with string and duct tape, would not have been able to lift even a small child, Alderden added.
调查发现，气球的材料是被银色箔片覆盖的防水帆布，用绳子和胶带捆扎而成。这样的气球根本不可能带着一个小孩子飘到天空中。奥尔德登补充说。
Investigations found that the balloon, a structure of silver foil-covered tarpaulins held together with string and duct tape, would not have been able to lift even a small child, Alderden added.
调查发现，气球的材料是被银色箔片覆盖的防水帆布，用绳子和胶带捆扎而成。这样的气球根本不可能带着一个小孩子飘到天空中。奥尔德登补充说。
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