1·Arrow with optional ends indicating flow path or direction of rectilinear motion.
箭头，其指示流动路线或线性运动方向的端点可以选择。
2·Well-to-do Chinese would have started a discussion as to whether the universe moves in cycles or progresses by a rectilinear motion;
遇上有钱的中国人他们会给你海阔天空地探讨一番：宇宙的星辰日月是循环式地转动的，还是直线式地轮回运行的；
3·The device integrated traditional combustion engine and plunger pump technique, made directly use of the rectilinear motion of plunger for outputting water power.
内燃式水动力装置将传统内燃机与柱塞式水泵技术集成为一体，直接利用活塞往复直线运动输出水压能。
4·According to motion analysis, the necessary conditions for realizing the radial rectilinear motion were given and the kinematics and dynamic analysis of the cleaning robot were discussed.
通过运动分析给出了实现径向直线伸缩运动的必要条件，进行了净化机器人的运动学与动力学分析。
5·Internal combustion water power system integrated traditional internal combustion engine and plunger pump technique, made directly use of the rectilinear motion of plunger for output water power.
内燃式水动力系统将传统内燃机与柱塞式水泵技术集成为一体，直接利用活塞往复直线运动输出水动力。
6·The rectilinear movement has thus become changed into a circular motion of extreme velocity, and it is now pursuing an elliptical orbit round the moon, of which it has become a true satellite.
因此，炮弹由直线运动变成高速的环形运动，现在正沿一条椭圆形轨道绕着月亮飞行，变成了一颗真正意义上的卫星。
7·In the robot, two planetary gear mechanisms were assembled to realize the radial rectilinear stretching motion and a seal structure was used.
该净化机器人采用两组行星轮系组合来实现关键的径向直线伸缩运动，并合理配置密封来实现上述需求。
8·Feature: our machine adopted four-cams and connecting rod elements to drive lower workbench which the mould on it, do rectilinear movement and tilting motion.
特点：本机采用四凸轮及连杆原理，驱动下工作台(下工作台面安装下模具)，作直线运动和翻转运动。