替代品

一只真实鸽子的骨架标本，每块骨骼紧密连接在一起。为更好的进行对比观察，另附一只栩栩如生的覆盖真实鸽子羽毛的模型。标本与模型安装在底座上，放置在标本箱中，确保产品具有较长的使用寿命。 尺寸：约 35 x 25 x 25 cm³ 重量：约 3 kg 生物学分类 纲：鸟纲 目：鸽形目 科：鸠鸽科 饮食：杂食 尺寸：约 20 – 35 cm 重量：约 180 – 350 g 年龄：约 1 – 4 年 更多

透明的塑料槽体。 规格：170×130×85 mm 更多

As a substitute for the electrochemistry equipment set. Dimensions: 76 mm x 40 mm 更多

Set of 5 carbon plates measuring approx. 76 x 40mm. Equipment Set sold separately under code 1002711. 更多

预先摄像并置于滑动框架 缝/光栅线宽度(mm):0,15 缝的间距(mm) :0,25 缝的数目:2 更多

预先摄像并置于滑动框架 光栅线数(cm-1)):20; 40; 80 晶格常数(mm):0,50; 0,25; 0,125 更多

用于范德格拉夫发电机U15300的橡皮带。 长：930 mm 宽：50 mm 更多

高度:35 mm 表面:200×35 mm 更多

高度:35 mm 表面:200×35 mm 更多

高度：35 mm 焦距:- 400 mm 规格 : L = 200 mm, D = 40 mm 更多

高度:35 mm 焦距:+400 mm 规格 : L = 200 mm, D = 40 mm 更多

高度:35 mm 规格 : L = 200 mm W = 100 mm 更多

高度：35 mm 焦距: ＋200 mm 规格: 直径 200 mm 更多

高度:35 mm 规格 : S = 200 mm, 200 mm, 283 mm 更多

它们用于磁化板上的投影实验。 立方体：100×20×35 mm 圆柱体: 高35mm,直径60mm 圆柱体：高35mm,直径15mm 更多

带有固定器的槽形砝码，用于装置U52004的力的分解。它包括3套： 2 5 g,2 10 g, 2 20 g, 2 50 g 砝码和1 50 g的固定器。 更多

附加的滑轮带有扣紧的夹子、线绳和50 g 用于砝码悬挂的挂钩，包括2 5 g, 2 10 g, 2 20 g, 2 50 g。这些砝码都是用于U52004演示力的工作台。 更多

Spare balls for the free fall apparatus (U8400830) and launcher S (U8400930). Diameter: 16 mm 更多

' data-item-price="66.0000" data-href="https://www.3bscientific.com/cn/dynamometer-with-round-dial-5-n-component-mechanics-kit-for-whiteboard-1024238-u8402505-3b-scientific-u8402505,p_171_33559.html" > Application Area: This product is part of the 'Mechanics Kit for Whiteboard' (Item No.: 1000735). Product Description: Spring dynamometer for experiment demonstrations. Grooved pulley on ball-bearings and cord with hook. Large, easily ... ' data-item-price="66.0000" href="https://www.3bscientific.com/cn/dynamometer-with-round-dial-5-n-component-mechanics-kit-for-whiteboard-1024238-u8402505-3b-scientific-u8402505,p_171_33559.html">更多

' data-item-price="60.0000" data-href="https://www.3bscientific.com/cn/dynamometer-with-round-dial-5-n-component-mechanics-kit-for-whiteboard-1009740-u8402505old-3b-scientific,p_171_17571.html" > Application Area: This product is part of the 'Mechanics Kit for Whiteboard' (Item No.: 1000735). Product Description: Spring dynamometer for experiment demonstrations. Grooved pulley on ball-bearings and cord with hook. Large, easily ... ' data-item-price="60.0000" href="https://www.3bscientific.com/cn/dynamometer-with-round-dial-5-n-component-mechanics-kit-for-whiteboard-1009740-u8402505old-3b-scientific,p_171_17571.html">更多

Application Area: This product is part of the 'Mechanics Kit for Whiteboard' (Item No.: 1000735). Product Description: Aluminium block with a teflon-coated surface and 2 hooks. Technical Specification: Dimensions: 55 mm ×50 mm ... 更多

Aluminium ring with a blade for determining the surface tension of liquids. Includes a hook and three threads for suspension from a dynamometer. Diameter: 60 mm Weight: 5 g approx. 更多

Lenses made of high-quality optical glass. Breakage and impact-resistant, set in a slide with magnetic base. Dimensions: 70x70 mm² Lens diameter: 36 mm f = +300 mm 更多

Lenses made of high-quality optical glass. Breakage and impact-resistant, set in a slide with magnetic base. Dimensions: 70x70 mm² Lens diameter: 36 mm f = +100 mm 更多

Lenses made of high-quality optical glass. Breakage and impact-resistant, set in a slide with magnetic base. Dimensions: 70x70 mm² Lens diameter: 36 mm f = +50 mm 更多