ring stage
2.Analysing and Treating Friction Losses on Parts of the Second-Row Shroud-Ring in the Curtis Stage of a Turbine Rotor
3.He looped the painter through a ring in his landing-stage, climbed up into his hole above, and after a short interval reappeared staggering under a fat, wicker luncheon-basket.
5.The result of experiment alsoshowed that the ring-opening polymerization of L-Ala-NCAs in nitrobenzene solventhad stepwise polymerization characteristic. The monomer disappeared soon in theearly stage and converted to oligomer, the conversion was also very high at the firststage.
6.Referring to the standard NEMA dual ring phase scheme, it analyzes the candidate phase transition and presented the concept of 3-stage phase transition process, which can generate the phase combination and phase transition with high flexibility and is able to reduce the complexity of decision making process.
8.The connector is made up of upper joint, slotted steel ball, O-ring, locking pin, slotted sliding sleeve, coupling sleeve, setting ball, setting sliding sleeve, adjusting spring and lower joint The string combined with dual-stage and high efficiency connector + differential packer not only can be used to guarantee the full setting of the packer, also can be connected under low pressure ranged from 1.5-3.0 MPa, and better effect is obtained in field application.
10.The maximum transmission efficiency of two-stage three-ring gear reducer is 93%, and the load distribution non-uniform coefficient is less than 1.1,and its vibration acceleration is less than acceleration of ordinary three-ring gear reducer that has the same properties.

