The petition could be just a trial balloon to test the administration's reaction.

这次上诉可作为测试政府反应的一个试行方案。

If the enemy tried to shoot that trial balloon, the men would not go up.

如果敌人射击那只气球的话，他们就不再上去了。

Even as RenRen is using this IPO to float its shares into the U.S. market, Wall Street seems to be using it to float a trial balloon.

人人网正在利用此次IPO在美国股市上大肆散发其股份，另一方面，华尔街却似乎把人人的IPO看成了一个试验气球。

Even as RenRen is using this IPO to float its shares into the U. S. market, Wall Street seems to be using it to float a trial balloon.

人人网正在利用此次IPO在美国股市上大肆散发其股份，另一方面，华尔街却似乎把人人的IPO看成了一个试验气球。

It seems that NASA is already floating a trial balloon insinuating that the Chile quake was so large that it will, by itself, begin a wave of larger and more frequent quakes.

看起来NASA已经放出了试探性的气球，暗示了智利地震强度如此大，它本身就引起了一波更大更频密的地震。

In the only prospective, randomized trial performed comparing balloon dilation with surgery, myotomy outperformed balloon dilation 95% to 65%.

在只有前瞻性，随机试验进行比较球囊扩张术，切开术优于球囊扩张95%至65%。