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- first arrival phase 初至震相
- She could only enter into it fully when they recalled Sonya's first arrival. 在他们回忆起索尼娅首次来到他们家中的时候，她才参加谈话。
- The analysis of seismograms indicates that the first arrival is a P-wave, followed by a S-wave. 地震波记录曲线的分析表明，初至波是P波，随后是S波。
- First arriving unit failed to initiate command. 第一个到达现场的救援车辆没有组织指挥。
- The first arriver will cook the supper. 谁先到家，谁就开始做晚饭。
- On your first arrival at a college, you need to get your bearings! Kelly and Sandra find out about their campus from some schoolmates. 当你初次踏入大学校门的时候,你需要弄清楚和你有关的事情。Kelly和Sandra从一些同学那儿了解了她们的学校。
- Nonlinear conjugate gradient optimize is used to realize the first arrival tomography inversion.The process of inversion is convergent. 利用非线性共轭梯度优化方法来实现初至旅行时层析反演，反演过程稳定收敛。
- Picking first arrival is the base of refraction statics, and it is often difficult to do with many data in the northwest area of China. 然而,这些地区的地震记录中,初至波却常常受到各种干扰的影响,使得其波形发生畸变,从而导致初至拾取不准确。
- We befriended her when she first arrived in Beijing as a guest. 在这个问题上,他们意见一致。
- They were friending me when I first arrived in Boston as a student. 我初次来到波士顿读书时，他们像朋友一样对待我。
- Picking the first arrival of microseismic (MS) wave is a frequently discussed issue in data processing, and also the most important basis of automatic source location. 摘要微地震(MS)波初始到时的自动拾取是MS监测数据处理的关键技术之一，也是实现MS震源自动定位的技术难点。
- English translation: PJM: (the most unforgetable) First arrival to Malaysia, it was raining, it seemed that wherever SS501 go, there's rain, this has left me a deep impression. 朴政珉：（大马之行最难忘的事）第一次来马刚抵达机场就下雨，看来SS501到哪里就会下雨，这给我留下深刻的印象。还有刚抵达时的一系列拍摄，后来又乘船下海拍照，可以直接看海又钓鱼，真是个美好的回忆。
- When I first arrived in Japan I didn't speak any Japanese. 我初到日本时一句日语也不会讲。
- The first arrivals at the concert got the best seats. 最早来到音乐会的人坐上了最好的座位。
- The students may be a bit wild and woolly when they first arrive, but they'll soon settle down. And if they don't, they'll be gone before this time next year. 学生们初来时可以有些粗野，但他们会很快安定下来。要是做不到，到不了明年的今天他们就得走路了。
- We felt indeed, particularly so when he first arrived. 我们的确感到了,特别是在他刚刚到来的时候。
- When the governess first arrived the children played tricks on her. 女家庭教师刚到的时候,孩子们都捉弄她。
- They befriended me when I first arrived in Boston as a student. 我初次来到波士顿读书时,他们像朋友一样对待我。
- Jews first arrived at Kaifeng at least 2, 000 years ago. 犹太人首次抵达开封至少是在2000年前。
- When I first arrived here, the MRT was still being built. 当我刚到时;捷运还正在建设.
