<p><strong><span style=\"font-size: 12.0pt; mso-bidi-font-size: 10.0pt; font-family: \'Times New Roman\'; mso-fareast-font-family: \'Times New Roman\'; mso-ansi-language: EN-GB; mso-fareast-language: CS; mso-bidi-language: AR-SA;\" lang=\"EN-GB\">Hot surface as an ignition temperature of dust layer</span></strong></p>