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181. Carcinoids had ultrasonic characters in most pleomorphic adenoma and were confirmed by surgery and pathology.

182. Objective To determine the value and safety of the high - risk uterine cavity operation with ultrasonic monitoring.

183. The principle of sonochemistry and ultrasonic apparatus for chemical laboratories are introduced. Sentencedict.com

184. Yongping Copper Mine has summarized the methods of frequency selection and calibration of PSM-400 ultrasonic wave separator-size analyzer in practice.

185. A special design to produce 2-5 layers bonding from feeding raw material, ultrasonic welding, slitting to rewinding filter bag with automatic mechanism.

186. Through designing and making simulation reference block for EBW seam, the ultrasonic C-scan testing method is studied.

187. The main achievements are obtained as follows: Theory of ultrasonic open channel flowmeter is fully analyzed.

188. The soluble protein in the supernatant was separated with the precipitate after ultrasonic cytolysis and centrifugation.

189. Using an ultrasonic level detector and a conductometer, the situation of level fluctuation and fluid mixing was determined.

190. This paper designed a kind of ultrasonic gas meter applying LM 1812 according as the frequency - difference method.

191. Power MOSFET has been used in wide areas including switching power supply, motor speed, uninterrupted power supply, high-frequency ultrasonic generator and heating power.

192. Method: Copper needle was placed into the tumor tissue under the guide of colored Doppler ultrasonic angiograph with a probe of 70MHZ.

193. Applying the scanning device , the residual limb is scanned and its multi - angle ultrasonic images are obtained.

194. The miniature ultrasonic probe and azygos hemodynamic study play a more important role in evaluation the treatments of esophageal varices.

195. Aim Study on the characteristics of the input impendence of cosine type loaded ultrasonic horn.

196. This paper introduces the principle and implementation of fetal monitor based on DSP and ultrasonic Doppler theory.

197. The action units are provided with far infrared ceramics and ultrasonic energy converters which are connected with the ultrasonic generator.

198. This moth's ear is tuned in to the bat's ultrasonic squeak.

199. The ultrasonic pulse sent is controlled by CPU, The ultrasonic pulse can be sequent and discontinuous.

200. Its coupling oxidation is implemented by using mixed oxidant containing O-, O2, O and O3 in coupling field formed from at least two both of magnetic field, ultrasonic wave and UV light.

201. METHODS: The ultrasonic transducer is located by using single chip computer and absolution position coder.

202. Objective To study the ultrasonic imaging characteristics and its diagnostic value for clonorchiasis.

203. In this paper, the basic principle of coded excitation is introduced. Through acoustic intensity analysis, the maximum improvement of SNR of ultrasonic image with coded excitation is deduced.

204. The antioxidant of Terminalia chebula Rotz are distilled by the ultrasonic extraction method with acetone, ethyl acetate and 85% ethanol.

205. The extraction condition that influences the yield of arabinogalactan was studied, including ultrasonic wave (power), mass ratio of liquid to material, raw material granularity and extraction time.

206. In NDT ( Non - destructive Testing ) of weld flaw, UT ( Ultrasonic Testing ) is an important method.

207. ... electric potential measurement, microwave measurement, capacitance measurement, ultrasonic measurement, laser measurement, etc.

208. Automatic ultrasonic testing, manual ultrasonic testing and radiographic testing techniques were used on the inspection of embedded defects.

209. Chaodong Li, Chunsheng Zhao. A Large Thrust Linear Ultrasonic Motor Using Longitudinal and Flexural Modes of Rod-Shaped Transducer. 1998 IEEE Ultrasonics Symposium Proceedings.

210. The mantid ear -- a single slit -- is sensitive to the ultrasonic "pings" emitted by hunting bats.