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181. The paper analyses the decolorizing mechanism of biofiltration and the hardening of filter materials and finally concludes that the mixed argil grain and spongy iron is the best.

182. Defect on inner diameter; large NCU condition indicating lack of stock for regrinding within specifications, machined undersize in green operation or caused by error in hardening process.

183. By hardening gold, people can then make coins and jewelry with it.

184. They can only be strengthened by cold working ( also called strain hardening ).

185. The first stage of syphilis, characterized by formation of a painless chancre at the point of infection and hardening and swelling of adjacent lymph nodes.

186. Frequently drinking persimmon leaf tea can help lower blood pressure and treat hardening of the arteries.

187. A new CGM fast-aid repair material was developed by changing the kind of cement and adding hardening accelerator based on the CGM High Strength Non-Shrinkage Grouting Material.

188. On the one hand, the material of formational part chooses hardening alloy tool steel to save steel.

189. The intercritical hardening of hypoeutectoid steel takes effect on the strengthening and toughening.

189. Sentencedict.com is a sentence dictionary, on which you can find good sentences for a large number of words.

190. Crystallizer sealing paint has a good sealing performance. It can be natural hardening in the air and has a better adhesive property, simple operation and long storage etc.

191. A study has been made of low-cycle impact fatigue behaviours of aluminium and duralumin including cyclic stress-strain behaviour, cyclic hardening(softening) and fatigue life.

192. The laser hardening microscopic structures are mainly very fine martensite and the original pattern of flake graphite basically remain.

193. Kinematic hardening model was used in FEM analysis and the response behaviors of transient local stress strain for material was also considered.

194. The hardening layer was analyzed by metalloscope, microhardness, electronic probe and transmission electron microscopy.

195. For example , heat hardening, anneal, temper and so on.

196. The effect of forged isothermal hardening of high carbon low steel ball were studied.

197. It is tested that the depth of laser hardening layer and its microstructure and microhardness varies with the power and scanning speed.

198. When it accumulated to a higher degree, the specimen began to shear and dilate after a short time of strain hardening.

199. Pain develops because there is a narrowing or blockage in the main artery taking blood to the leg due to hardening of the arteries (atherosclerosis).

200. According to the requirements of plate spring′s application and processing technology, this paper introduces a design of a new type of plate spring shaping hardening machine.

201. This paper analyzes the problems existing hardening and tempering process of the large draw bar.

202. A photomechanically produced plate for pictures or type made by exposing a gelatin film under a negative, hardening it with chrome alum, and printing directly from it.

203. The material with high water is a new water - hardening inorganic gelling material.

204. The corrosion resistance of 07X16H6 precipitation hardening stainless steel in tempered state was studied using high temperature oxidation, salt-spray test and stress corrosion test.

205. The developing trend of the hardening numerical control system is specialization, intelligentization and network forming.

206. Therefore it can be used for surface hardening and hardening of localised areas of metallic parts by "outrunning" the thermal conduction of heat deeper into the part or to surrounding areas.

207. The cooling velocity of fast cooling section and over aging temperature have no significant effect on bake hardening property.

208. Through XRD and the SEM microscopic test method, the microstructure of hydro - thermal synthesis hardening has studied.

209. Tenacity and abrasively of high - intensity alloy steel body strengthened by balanced hardening treatment and stress removal.

210. The effects of laser transformation hardening (LTH) on the fretting wear of titanium alloy are investigated.