发现新冒险

Certified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the Ex...

特征 研究标本在阶段，使用三个倍倍功率，范围从300倍到1200倍。 使用投影目镜跟踪图像以稍后分析或同时与多个观众分享您的发现。 颜色过滤轮使识别无色或透明标本的详细信息变得更加容易。 包括实验手册，收集/预备工具，准备和空白幻灯片，虾孵化场以及其他配件，以开始调查。 描述 您不必总...

Features Study specimens in stages using magnification powers ranging from 40x to 400x with 3 objective lenses. The full accessory set includes p...