There is an internal circuit breaker to protect the instrument from overload.内置有断路器，防止设备过载。The movie became a box-office record breaker.这部电影打破了先前的票房纪录。His wind - breaker is the same as yours.他的风衣和你的一样....
Gretchen chewed energetically on the gristled steak.格蕾琴费劲地嚼着那块带软骨的牛排。Once Gretchen had left the office, her doubts would return with a vengeance.格蕾琴只要一离开办公室，她又会疑窦丛生。Rudolph laughed and despite herself Gretchen had to lau...
Isoprene could be deeply hydrogenated to isopentane on nickel catalyst.异戊二烯在镍基催化剂作用下可深度加氢为异戊烷.Development proposals of isoprene rubber in China were put forward.结合我国的实际情况,提出了发展我国异戊橡胶的几点看法.Polymerization of isoprene in th...