Abstract: Disclosed herein is a semi-submersible offshore structure having storage tanks for liquefied gas, which is constructed so as to improve workability in marine offloading of the liquefied gas stored in the storage tanks while reducing an influence of sloshing. The offshore structure is anchored at sea and has liquefied gas. The offshore structure includes a storage tank storing liquefied gas, a plurality of columns partially submerged under the sea level and each having the storage tank therein, and an upper deck located on the plurality of columns to connect the columns to each other.

Abstract: The invention is a drunkometer comprising a main body 10 and an alcohol sensor 20 provided in the main body 10 and detecting the concentration of the alcohol gas in the exhaled breath of the tested person, the drunkometer 10 further comprises a gas inlet port 21 provided on one side of the main body 10 and communicating with the alcohol sensor 20, into which a gas outlet port 53 of a portable standard gas cartridge 50 containing a standard alcohol gas with the predetermined concentration is detachably connectable, so that test or correction of the drunkometer should be carried out by connecting the gas outlet port 53 of the portable standard gas cartridge 50 into the gas inlet port 21 of the main body 10, detecting the alcoholic concentration of the standard gas cartridge 50 by the alcohol sensor 20 and comparing the detected value with that of the predetermined concentration of the portable standard gas cartridge 50.

Abstract: Disclosed herein is a semi-submersible offshore structure having storage tanks for liquefied gas, which is constructed so as to improve workability in marine offloading of the liquefied gas stored in the storage tanks while reducing an influence of sloshing. The offshore structure is anchored at sea and has liquefied gas. The offshore structure includes a storage tank storing liquefied gas, a plurality of columns partially submerged under the sea level and each having the storage tank therein, and an upper deck located on the plurality of columns to connect the columns to each other.

Abstract: Disclosed herein is a semi-submersible offshore structure having storage tanks for liquefied gas, which is constructed so as to improve workability in marine offloading of the liquefied gas stored in the storage tanks while reducing an influence of sloshing. The offshore structure is anchored at sea and has liquefied gas. The offshore structure includes a storage tank storing liquefied gas, a plurality of columns partially submerged under the sea level and each having the storage tank therein, and an upper deck located on the plurality of columns to connect the columns to each other.