Heat sensors, often installed in kitchens to avoid false alarms if you simply happen to burn the toast, generally sound when temperatures climb above roughly 50C.
"Occasionally landowners may wish to retain title to objects, in which case they will be returned to their care," said the spokesperson.
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Unity对中国业务的估值预期超过10亿美元(约合人民币68.89亿元），但具体金额将取决于买家报价及谈判进展。知情人士同时指出，相关磋商仍在进行中，未必一定会达成交易。Unity的代表对此拒绝置评。
So close in fact, says Cardiff University archaeologist Tudur Davies, that some of these graves have several people in them.