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121. As an auxiliary part of the side roof's action (on or off), the pneumatic stay bar has been used widely on rail transit vehicles.

122. Experiments in pneumatic conveying show that there exists a maximum particle concentration.

123. Objective To summarize the experiences of pneumatic lithotripsy under ureteroscope for pyonephrosis due to calculus obstruction.

124. This paper is based the full analyse and research of noise source of pneumatic drill.

125. To provide a pneumatic tire in which a shape retention property of tires and the durability of belt layers are improved without reducing the uniformity of tread rubber.

126. Low fault rate(Sentencedict.com), as using imported pneumatic and photoelectric detecting elements with low fault rate.

127. The unique design is that the height of the cradle body is adjusted with off-center bearing and pneumatic system with piston valve.

128. Diagraph spring pneumatic brake valve is widely used as control valve for tractor - trailer braking system.

129. With the use of differential control QZB18 double fluid chemical slurry-injection pump has a character of simple structure, small cubage and high efficiency. It has a perfect pneumatic control set.

130. In order to ensure spherical fuel elements to transport reliably in 10MW high temperature gas cooled reactor (HTR-10), the method of pneumatic post is utilized.

131. The small pneumatic spot welder is specially designed for welding with the stainless steel, nickel, iron, tinned wire and sheet copper.

132. Conclusions: Treatment of ureteral calculi with ureteroscope and pneumatic lithotriptor is effective and safe. The result would be better in combination with ESWL.

133. The spring balancer can ensure the operation space and improve operation environment, and is suitable for hanging pneumatic tool with installation torque testing function.

134. The paper introduces the research and development of pneumatic pipe - rammer principle and design principle of program.

135. Methods A total of 28 cases of acute renal failure caused by ureteric obstruction were treated with ureteroscopy combined with pneumatic lithotriptor, holmium YAG laser, and ESWL.

136. The utility model relates to a pneumatic water pipe dredger, which is mainly composed of a base pipe, a compressed air bottle and a sheathing head. A short through pipe is arranged in the base pipe.

137. The optimum programme can be used to design pneumatic four-bar linkage roof-window mechanism of all kinds of multi-span plastic greenhouses by changing load and structure parameters.

138. The Ecoserial device is a digital economiser with differential pressure gauge able to pilot until 204 valves by connecting itself to a pneumatic driving module RPB with only two threads.

139. On the basis,[www.Sentencedict.com] the corresponding research on control strategy has been studied for the pneumatic servo positioning system.

140. KT-400 high vacuum oil diffusion pump, which is characterized by extreme high vacuum, pumping speed large, increase production efficiency while the vacuum pneumatic valves with automatic control.

141. Air or gas cylinder actuators include single or double acting, fail open or closed by mechanical spring or pneumatic force. They can be manufactured to accommodate any length stroke.

142. The hydraulic or pneumatic braking system can make emergency brake effectively.

143. It is a company that research and development, manufacture, sale the electrons, the electrical element , including the electronic switching, connector, encoder, pneumatic element, hardware tool .

144. At first, the pneumatic position servo control system is analyzed systemically.

145. To solve the problem of residual vibration of the joint actuated by pneumatic muscles under step input, input shaping method is introduced.

146. Stilwell promised his brother a pneumatic gun on his birthday.

147. A pneumatic tire in which shoulder regions of the tread has improved resistance to uneven wear and the rigidity of the tread in the tire's lateral direction is uniform.

148. The central pipes between two pneumatic tyre unions can be steel pipes, yet the perfect pipes shall be hose central pipes with two ends equipped with steel joints.

149. An asymmetric pneumatic servovalve with even underlaps or uneven underlaps was pro posed and investigated.

150. The experience of pile hole drilling using pneumatic hammer in bridge construction is reviewed. Equipments, tools and techniques are also described in detail.