In the ship construction portfolio，materials which do not conform to ASTM or ABS specifications must also include the（）.

The lines led forward from the bow and aft from the stern when a vessel is moored to the dock are（）.

Let’s submit the case（） the cargo surveyor.

Before welding can be done in a tank that has carried petroleum products，a certificate must be obtained from（）.

The burden of proving unseaworthiness is upon those who（）it.

Should the vessel have no deratisation certificate at the time of her delivery，she（）be held to be unseaworthy.

The document on a vessel，annually endorsed by an American Bureau of Shipping surveyor，is called the（）.

The bottom of the mast rests on a part of the keel called the mast（）.

Periodic surveys to renew the load line assignment for a ship must be made at intervals not exceeding（）.

Chafing gear（）.