first arrival

基本解释

One girl even walked me to the door of the hostel upon my first arrival, and showed me where she lived in case I needed any help later.
我初次到达时，有一位女孩甚至陪我到了旅馆门口，还把自己住的地方指给我看，让我以后需要帮助时可以找她。
Acquiring seismic information in the complex survey area, there often occur distorted phenomena in the first arrival wave of original record.
在复杂探测地区采集的地震资料，原始记录的初至波常常出现“扭曲”现象。
When using the instantaneous intensity ratio method, the event of first arrival curve becomes more smooth, and abnormal points have greatly reduced, thus the accuracy of picking is greatly enhanced.
而采用瞬时强度比法后，初至曲线的同向轴变得更加光滑，拾取异常点的情况大为减少，从而有效的提高拾取的精度。
118.145.16.227

My first arrival and final anchoring in the United States was through Pittsburgh.
FORBES: Latino Immigrants Want Salsa. Are We Giving Them Ketchup?
Armstrong himself ran U.S. ad sales for Google before joining AOL. One of his first moves upon arrival was to push out Coleman--the same Greg Coleman who then went to HuffPo--and replace him with Jeff Levick, another Google veteran, who brought in his own team.
FORBES: Magazine Article
And finally, I want to make mention that this is our first meeting since the arrival of the newest Sarkozy, and so I want to congratulate Nicolas and Carla on the birth of Giulia.
WHITEHOUSE: President Obama and President Sarkozy of France Speak on Bilateral Meeting

初至波
Three techniques for realizing first arrival tomography are seismic first arrivals picking, rays tracing and inverting the media model.
初至波三维地震层析成像的三个主要实现技术为:一、地震波初至时刻拾取;二、射线追踪技术;三、层析反演技术。
初致
初至

初至波
First arrival detecting is the important factor affecting the precision of localization.
准确地识别初至波到来的时刻,成为影响后续定位精度的重要因素。
经济学
最先到达火场的消防车