Meanwhile, some problems on upper air sounding balloon that should be solved at present are pointed out.
同时指出了目前高空探测气球应解决的若干问题。
There were 15 minutes between the first air raid alert and the sounding of the all-clear signal.
从第一个空袭警报到警报解除号音其间有15分钟。
Adding to the surreal atmosphere in Harrisburg that day was the sounding of an air raid siren that rang out through the capital city.
那天，除了哈里斯堡诡异的气氛外，空袭警报声一直传到首都。
It seemed as if the air were singing and sounding, as if rays of light were piercing through the leaves and the stalks of the Flower.
空气好像是在唱着歌和奏着乐，阳光好像钻进了它的叶子和梗子。
When the pre-set time is up, the connecting passage is clear and the air-operated sounding element is forced to make sound by the airflow.
当达到预置时间时，连接通道畅通使气流作用于气动发声元件发声。
The Bear League, a nonprofit bear-safety organization, says techniques like sounding air horns could be used instead of lethal ones.
以保护熊为宗旨的非营利性组织爱熊大联盟（The BearLeague）就表示，人们可以通过用气喇叭制造声响等办法把熊吓跑，而不必采用致其死命的手段。
The Bear League, a nonprofit bear-safety organization, says techniques like sounding air horns could be used instead of lethal ones.
以保护熊为宗旨的非营利性组织爱熊大联盟（The BearLeague）就表示，人们可以通过用气喇叭制造声响等办法把熊吓跑，而不必采用致其死命的手段。
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