Galileo did not invent the telescope, but on hearing, in 1609, that such an optical instrument had been made, he quickly built his own device from an organ pipe and spectacle lenses.
伽利略并没有发明望远镜,但在1609年听到有人制造了这种光学仪器后,他很快用管风琴管和眼镜镜片制造了自己的望远镜。
If oil got into the production pipe from the bottom, then barriers that would have impeded its flow up the cavity around that pipe would have made little difference.
如果油流从油井底部进入到生产管线内,这个环绕在生产管线外部的阻隔体对阻止油流上升能起多大作用呢,两者的差异将会非常小。
Andrew jacks on also had a pipe made from a corncob.
安德鲁·杰克逊也有一个用玉米棒子芯制成的烟斗。
This standard covers the procedures for the heat joining of pipe and fittings made from polyolefin materials utilizing either the socket or butt fusion methods.
这个标准涵盖采用承插热熔和对焊热熔方法对聚烯烃材料管道和连接件进行热连接的程序。
This article describes the whole process of JCOE longitudinal submerged arc welding pipe made from rolling plate.
简述了采用热轧卷板制造直缝埋弧焊接钢管的全过程。
Analysis is made on the structure of the space truss compound girder made from steel pipe concrete, and given directly the potential development.
介绍了钢管砼空间桁架组合梁式结构型式,通过分析它的受力特点,大胆预测了这种新型结构型式的广阔发展前景。
Adjustable pipe supports made from A-36 High Carbon steel designed to support heavy to light wall runs of pipe. Mainly used in the construction industry.
可调管道支撑由A - 36高碳钢制成,用于支撑重型到轻质各种管路。该类产品主要用于建筑行业。
Then, based on that, the turbulent motional differential equation for a pipe is made out From that, the turbulent flow and displacement laws for non-Newtonian fluids in a pipe have also been studied.
在此基础上,导出了适用于圆管的运动微分方程序。据此研究了非牛顿流体圆管紊流流场及两种非牛顿流体在圆管中的顶替规律。
Andrew Jackson also had a pipe, made from a corncob.
逊也有一个用玉米棒子芯制成的烟斗。
Thermal insulation pipe section made from mineral wool can be used for thermal insulation in small to medium sized pipe.
矿岩棉保温管壳,适用于中小口径管道的保温绝热。
The center pipe is machined from 64mm tubing, and the sand filter is made from silica sand, cement, additive.
滤砂器是根据不同技术标准筛选不同粒度的石英砂、油井水泥、添加剂和水按配比加工压制的。
The center pipe is machined from 64mm tubing, and the sand filter is made from silica sand, cement, additive.
滤砂器是根据不同技术标准筛选不同粒度的石英砂、油井水泥、添加剂和水按配比加工压制的。
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