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121, The system is mainly used in underwater topographical surveying and dynamic positioning of underwater riprap.

122, Because of bad transmission condition in underwater channel, synchronization signal processing is a key factor of underwater acoustic communication system.

123, However, analogue controller is dominant in electric propulsion system for underwater ship.

124, Direct sequence code division multiple access (DS/CDMA) as a technique for underwater acoustic networks is attracting attention from researchers.

125, Underwater there is no air for a combustion engine to consume.

126, In his Editor's note, the magazine's Editor in Chief Chris Johns said of Skiles: 'He set a standard for underwater photography, cinematography and exploration that is unsurpassed.

127, An application of Hilbert-Huang Transform in underwater acoustic vector signal processing was introduced and a new method of Vector Hilbert-Huang Transform(Vector HHT)was developed.

128, An integrative algorithm of passive detection and tracking of underwater moving target based on the co-processing algorithm of Matched-Field and Long Time Integration is proposed.

129, The works is significant and valuable to the study of underwater welding arc physics and welding metallurgic.

130, The undulatory biomimetic propulsor is a new underwater propulsor which emulates the swimming mode of Gymnarchus Niloticus.

131, Underwater photography is also important in mapping parts of the ocean floor.

132, The synthetic system simulation tests are presented in the underwater sound environment, respectively. The research result can be applied to the environment simulation of the underwa...

133, Several times during the summer of 1997, the U. S. National Oceanic and Atmospheric Administration recorded an ultra-low frequency underwater sound using U. S. Navy "spy" sensors 3,000 miles apart.

134, You can liken it to working underwater with a diving suit encasing you.

135, Ten tentacles as long or longer than its body stick out of its head, along with six pairs of curved nuchal organs that allow the squidworm to taste and smell underwater.

136, During the welding process, when underwater welding power outputs high level, the system stops feeding wires and wires burn upwards with forming molten droplets.

137, Underwater World (Underwater World) in a transparent tunnel, can be clearly observed 250 species, 2500, is Asias largest marine museum,(www.Sentencedict.com) the storage capacity of 310 million liters.

138, In order to enhance the accuracy of underwater topographic survey, efficient and automatic error correction is very important.

139, Six Italian divers were trying to live underwater for a while.

140, Had it afoul of an underwater rock or the wreckage of some enormous derelict ship?

141, Optic fiber hydrophone has the highest sensitivity among current underwater sensors.

142, Before 1997, the underwater videos revealed no Humboldt sightings in Monterey Bay, Robison said.

143, Many researches on auditory model have been successfully utilized on speech processing recently, while on underwater acoustic signal processing has long been neglected.

144, With vertical pipe shield and underwater pile-foundation, a protection frame for wellhead is designed for the development of offshore marginal field.

145, The Navy's Underwater Demolition Unit carry rubber boats at training.

146, The results thus obtained may help to understand the underwater explosion induced dynamic behavior of a submarine, and to improve the shock-resistant design of the ship structure.

147, To do this, scientists have to devise methods using radar and underwater television.

148, The rate of flow in an underwater tunnel has been computated by the least-squares boundary collocation method.

149, A game that is very popular with these young swimmers is the underwater tricycle race.

150, Once they are underwater, they close and fold the winglike fins so that they can swim.