Synonym: callosity, callousness, harshness, inclemency, insensibility, rigor, rigorousness, rigour, rigourousness, ruggedness, severeness, severity, stiffness, unfeelingness. Similar words: awkwardness, madness, sadness, kindness, wretchedness, harness, hard-pressed, wednesday. Meaning: ['hɑrdnɪs /'hɑː-] 
n. 1. the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale 2. devoid of passion or feeling; hardheartedness 3. the quality of being difficult to do 4. excessive sternness.
n. 1. the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale 2. devoid of passion or feeling; hardheartedness 3. the quality of being difficult to do 4. excessive sternness. 
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91. Durometer : Instrument for measuring the hardness of a resilient material, such as rubber blanket.
92. Experiment results indicated that rare earth could improve the hardness of bright nickel plating, the cathode polarization ability, the substrate bond strength and the grinding ratios of diamond tool.
93. Analysis was performed on the crack zone by macroscopical, microscopical and hardness testing.
94. When the hardness of plastic alloy underlayer increases[sentence dictionary], the coefficient of friction has increasing current.
95. The surface morphology, texture and adhesion of the diamond films were investigated by means of scanning electron microscope, X-ray diffractometer and Rockwell hardness tester.
96. Must have working knowledge of CMM , micro - height , hardness tester, surface gage , calipers, and additional equipment.
97. The isothermal annealing process to eliminate the banded structure and to control the hardness of forgings was introduced.
98. It was founded out to fit the heat resistant process of the fluoroelastomer by a lot of tests and measuring the physical properties tests(tensile strength, elongation at break and hardness).
99. Hardness than corundum, abrasive easily broken, sharp edges and corners, good cutting, grinding heat and small.
100. Instrumented indentation test is a new kind of testing method. It can determine not only the hardness but also the materials parameters of metallic materials.
101. Experimental results indicated that there is a monotonic relationship between the hardness of ferro magnetic materials and Barkhausen Noise strength, MP.
102. The carbon film prepared at 800 C displayed the maximum hardness.
103. In this paper, according to the test results, the functional relationship between the surface hardness value (HV)and the load for nitrided and nitrocarburized layer was studied by regression analysis.
104. Uniform hardness distribution even in large cross section mold dies because of excellent hardenability.
105. Their fracture toughness and hardness were determined with Vicker's indentation test machine.
106. The results showed that the steel after combined treatment had higher surface hardness and wear resistance, and prolonged the service life of cutting tool.
107. During the laser quenching process, the hardness layer distribution remains nearly the same, aside from the input-output area.
108. The surface hardness, carburized structure and thickness of the carburized layer on the TiAl-alloy obtained through the different carburization technologies was studied.
109. With regard to hardness, the diamond is in a class by itself.
110. Sintering densification behavior, hardness and grain growth characteristics of carbonyl iron powder prepared by spark plasma sintering (SPS) were studied.
111. It also expounds influences of hardness and roughness of teeth surface, lubrication, running-in before use on touch strength of gear.
112. It is analyzed the main reason that hot mineral screen plate has short service life, it is because that screen plate had low high temperature hardness and low high temperature wear-resistance.
113. The result showed that there was no significant correlation between preharvest sprout resistance and glume hardness of synthetic hexaploidy wheat in the whole population level.
114. Scratch Hardness Test Using a Diamond Stylus on the Micro - Tribometer mod.
115. But that results the high void ratio, low density, hardness, and quality bulk material.
116. Method of measurement uncertainty evaluation for Brinell hardness test results was introduced in the present work.
117. The fresh brain has a certain hardness after it is hardened by formalin.
118. Compared to IPDI-PU/PA, TDI-PU/PA hybrid emulsion had a low price, and could be added into more 100% titanium pigment which introduced an increase of hardness and hiding power of the latex film.
119. Bolting mechanical properties are tested by the tensile strength tester, impact tester and hardness testers, to guarantee the detect precision.
120. Specific volume of hamburger produced by complex flour descended, but the sense scores, hardness, springiness and chewiness of hamburger center did not significantly change.
More similar words: awkwardness, madness, sadness, kindness, wretchedness, harness, hard-pressed, wednesday, tactlessness, hard, hardly, orchard, hardware, hard copy, hardly any, hardship, hard and fast, hardly ever, hard knocks, oneness, hardworking, shyness, witness, finesse, fitness, harmless, sickness, awareness, darkness, wellness.