射孔
参考答案:
根据测试设计要求,将射孔器用电缆下入井内预定深度,对准目的层发射孔弹穿透套管壁及管外水泥环而射入地层,造成目的层至套管内腔的连通孔道,使地层流体能流入井内的技术。
根据提示和句意完成下列句子。
1.I never feel ________ (无聊的) or unhappy when he is with me.
2.My favourite s________ are Science and Chinese.
3.Mr Wu ________ (邀请) me to join in their trip yesterday.
4.Peter fell off the ladder yesterday. L________, he didn't hurt himself.
5.If someone shows bad manners to others. He is i_________.
泛化