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- These impulses or elastic waves are generally induced by blasting charges of dynamite in shot-holes drilled into the ground or by weight dropping . 首先是挖一个爆破井，将炸药放人井中，引爆炸药后便会产生所需的弹性波或脉冲。也可以利用一重物自由落体所产生的冲击得到弹性波。
- A 10% service charge is added on to the bill. 帐单上包括了百分之十的服务费。
- The accordion was in full blast in the hall. 在大厅里手风琴拉得非常响亮。
- Do they charge carriage by bulk? 他们是否按体积计算运费？
- The party was going on in full blast. 聚会进行得热闹非凡。
- Please charge these bills to my account. 请把这些帐单记在我的账上。
- She appear in court on a perjury charge. 她因被指控做了伪证而出庭受审。
- My brother plays his records full blast in his bedroom every night. 我弟弟每天晚上在他的卧室里大声放录音机。
- He is in charge of the operation of the steel mill. 他负责这家钢厂的经营工作。
- The shop stuck an additional charge on the bill. 商店在帐单上增收了一笔费用。
- A blast of the trumpet gave her a start. 突然发出的喇叭声吓了她一跳。
- A trumpeter sent out a warning blast. 号兵吹出告警的号声。
- How much interest do they charge on loans? 他们贷款收多少利息？
- The bomb blast killed several harmless passers-by. 炸弹爆炸使几个无辜行人受伤。
- They charge a fixed rate for each transaction. 他们对办理的每项业务收取一定的费用。
- A defect in the fuel lines prevented the missile from blasting off. 燃料管路上的一个缺陷妨碍了导弹的发射。
- He is proved to be innocent of the charge. 他被证实无罪。
- I am in charge of financial affairs. 我职掌财务。
- This charge is a positive charge. 这个电荷是正电荷。
- A blast of cold air hit him as he opened the window. 他打开窗，一股寒冷的空气直向他扑来。
