Specimen可与sample换用，但常指人或物中选出的有代表性部分，或指供科研、化验或检验用的标本。 主要内容如下:分 析介绍了几种常见抽油泵的工作原理、构造 、 适用范围及分类. Ordered the wrong size Tv set while in the application, but was capable of rapidly change my invest in inside the application also Once i discovered my mistake some hours later on. trait： 多指人的性格、心情的特征，尤指先... https://houseingurgaon.blogspot.com/2025/06/verti-greens-living-sophisticated.html