The new unit uses the pitman reserse mechanism instead of the crosshead slide reverse rack, adopts weight balancing instead of air balancing, and is provided with an improved guiding system.
这种抽油机以连杆式换向机构取代原有的十字滑块式换向架，以重块平衡代替气平衡，并改进了导向系统。
Practices indicate that comparing with traditional oil filter, pitman style & up-drawing core structural oil filter is easier to discharge, wash and replace.
实践证明，与传统滤油器相比，拉杆式上抽芯滤油器更易拆卸、清洗和更换。
That respectively does the academic calculation and ADAMS simulation for steering trapezium and pitman arm mechanism, and optimizes the steering characteristics.
分别就转向梯形机构和转向摇臂机构进行了理论计算和ADAMS仿真，并对转向特性进行了优化。
The paper aims at the problems of steering linkage with transition pitman arm of a bus, uses system dynamics software ADAMS to check and find out the problems, and then improves the design.
针对某款客车带有转向中间臂的转向杆系出现的问题，利用系统动力学分析软件ADAMS进行分析，找出问题并进行设计改进。
For years, Mr. Pitman, the U.S. Marine ecologist, has searched the world's rivers and oceans for rare species of dolphins and whales.
多年以来，美国海洋生物学家Pitman足迹遍及世界各大河流和海洋，搜寻稀有的海豚和鲸鱼。
Dr Robert Pitman, a Marine scientist at the National Oceanic and Atmospheric Administration in California, took the stunning images of the pod going in for the kill.
在加利福尼亚州国家海洋和大气管理局的海洋科学家罗伯特·皮特曼博士，拍到了这群动物如何一起进行猎杀的图片。
The first structured distance learning or correspondence courses were probably the shorthand courses offered by the Pitman organization at the end of the 19th century.
早期的远程学习借助于邮政系统，现在使用的是计算机、卫星和互联网。 远程学习并不是一个崭新的概念，最早的远程学习可能是皮特曼组织于十九世纪末开设的速记课程。
The first structured distance learning or correspondence courses were probably the shorthand courses offered by the Pitman organization at the end of the 19th century.
早期的远程学习借助于邮政系统，现在使用的是计算机、卫星和互联网。 远程学习并不是一个崭新的概念，最早的远程学习可能是皮特曼组织于十九世纪末开设的速记课程。
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