Only differences in enthalpy are of practical engineering interest.在实际工程上有意义的只是热含量之差.A change in enthalpy also takes place when a change of phase occurs.相发生变化时,焓也发生变化.The enthalpy is constant in the throttling process.节流...
当好运来临时，他充分把握住了。When fortune smiled on him, he made the most of it.他跪在她的旁边，双手握住她的一只手。He knelt beside her and caught her hand in both of his.他的手被热情地紧紧握住了。His hand was taken in a warm, firm grasp....
Scatter the grass seed over the lawn.把草籽撒到草坪上。When the fire had at last been put out, the forest authorities ordered several tons of special type of grass - seed which would grow quickly.在火终于被扑灭的时候, 森林管理局订购了好几吨特殊速生草籽.Pre...
He was holding a cloth that dripped pink drops upon the floor.他正拿着一块布，布上粉红色的水滴落在地板上。Add a few drops to half a tumbler of water.在半玻璃杯水里面加上几滴。Once the rate rises it never drops back to its previous level.一旦价格上去了就再也不会降到以前的水...