messages: «titanium content: 8 ppm (corresponding to a polymerisation yield of 6 kg/gramme-milliatom of titanium of the catalyst)»
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  this text needs translating from english to french
messages: user
messages: «teneur en titane: 8 ppm (correspondent à un rendement en polymérisation de 6 kg/milliatome-gramme de titane du catalyseur),»
messages: assistant