Vessels berthing in the Specified Port having a whistle or siren shall display in the vessels the method of the fire warning set forth in the preceding Article at an easily seen place for persons engaging in blowing the whistle or siren.
（1） Vessels in the Specified Port having a whistle or siren shall, when a fire occurs in such vessels, blow a prolonged sound （which means a prolonged sound under paragraph 3 of Article 32 of the Act on Preventing Collision at Sea） five times by using the whistle or siren as an warning for notifying a fire, except for cases in which they are navigating.
Back to the Urumqi Mass Incident, during the curfew, twitterer zz23377737 experienced 1. electricity cut. 2. disrupted tele-communication 3. non-stop police siren. Several twitterers said that the Internet connection was still cut unavailable this morning in Urumqi.
ウルムチでの暴動に話を戻そう。外出禁止令発令中に、Twitterユーザzz23377737は、停電や電話の寸断があり、警察のサイレンが鳴り続いていたという。数人のTwitterユーザは、6日朝ウルムチでは、いまだインターネットが接続できない状態だと言っている。◆【出典】Global Voices Online◆【英文】Oiwan Lam ◆【和訳】Hanako Tokita ◆【License】CC BY 3.0
The employer shall, when carrying out the construction work on river with a danger of debris flows, provide alarm equipment of a siren, an emergency bell, etc., to inform the workers concerned at the occurrence of debris flow, and make the place of the equipment known to the workers concerned.