All vessels. This is Avonport. Navigational warnings. There are pipelaying operations near gas leakage.

各船请注意，警告，在气体泄露处附近有管道敷设作业。

Sophisticated instruments which were to make possible the European voyages of discovery, such as the astrolabe , the quadrant, and good navigational maps, were also developed by Muslims.

复杂的器使得欧洲人得以进海上探险,例如星盘、象限的海图都是由穆斯林所发明的。

All vessels. This is Avonport. Navigational warnings. There are pipelaying operations near gas leakage.

各船请注意，行警告，在气体泄露处附近有管道敷设作业。

Sophisticated instruments which were to make possible the European voyages of discovery, such as the astrolabe , the quadrant, and good navigational maps, were also developed by Muslims.

复杂的仪器使得欧洲人得以进行海上探险,例如星盘、象限仪及好的海图都是由穆斯林所发明的。

All vessels. This is Avonport. Navigational warnings. There are pipelaying operations near gas leakage.

各船请注意，行警告，在气体泄露处附近有管道敷设作业。

Sophisticated instruments which were to make possible the European voyages of discovery, such as the astrolabe , the quadrant, and good navigational maps, were also developed by Muslims.

复杂仪器使得欧洲人得以进行上探险,例如星盘、象限仪及好图都是由穆斯林所发明。

All vessels. This is Avonport. Navigational warnings. There are pipelaying operations near gas leakage.

各意，行，气体泄露处附近有管道敷设作业。

Sophisticated instruments which were to make possible the European voyages of discovery, such as the astrolabe , the quadrant, and good navigational maps, were also developed by Muslims.

复杂的仪器使得欧洲人得以进行海上探险,例如星盘、象限仪及好的海图都是由穆斯林所发明的。

All vessels. This is Avonport. Navigational warnings. There are pipelaying operations near gas leakage.

各船请注意，警告，在气体泄露处附近有管道敷设作业。

Sophisticated instruments which were to make possible the European voyages of discovery, such as the astrolabe , the quadrant, and good navigational maps, were also developed by Muslims.

复杂仪器使得欧洲人得进海上探险,例如星盘、象限仪及好海图都是由穆斯林所发。

All vessels. This is Avonport. Navigational warnings. There are pipelaying operations near gas leakage.

各船请注意，行警告，在气体泄露处附近有管道敷设作业。

Sophisticated instruments which were to make possible the European voyages of discovery, such as the astrolabe , the quadrant, and good navigational maps, were also developed by Muslims.

复杂的仪器使欧洲进行海上探险,例如星盘、象限仪及好的海图都是由穆斯林所发明的。

All vessels. This is Avonport. Navigational warnings. There are pipelaying operations near gas leakage.

各船请注意，行警告，在气体泄露处附有道敷作业。

Sophisticated instruments which were to make possible the European voyages of discovery, such as the astrolabe , the quadrant, and good navigational maps, were also developed by Muslims.

复杂的仪器使得欧洲人得以进行海上探险,例如星盘、象限仪及好的海图都是由穆斯林所发明的。

All vessels. This is Avonport. Navigational warnings. There are pipelaying operations near gas leakage.

各船请注意，行警告，在气体泄露处附有管道敷设作业。

Sophisticated instruments which were to make possible the European voyages of discovery, such as the astrolabe , the quadrant, and good navigational maps, were also developed by Muslims.

复杂的仪器使得欧洲人得以进行海上探险,例如星盘、象限仪及好的海图都是由穆斯所明的。

All vessels. This is Avonport. Navigational warnings. There are pipelaying operations near gas leakage.

各船请注意，行警告，在气体泄露处附近有管道业。

Sophisticated instruments which were to make possible the European voyages of discovery, such as the astrolabe , the quadrant, and good navigational maps, were also developed by Muslims.

复杂的仪器使得欧洲人得以进行海上探险,例如星盘、象限仪及好的海图都是由穆斯林所发明的。