1.
a four-stroke internal-combustion engine without reciprocating parts.
四击内燃机没有往复的部分。
2.
The mathematical operations are often quite complicated.
这种数学运算往往是十分复杂的。
3.
differential pump
差动泵（往复泵的一种）
4.
the rapid to-and-fro movements of a piston
活塞快速的往复运动.
5.
But using hardware also brings some shortcomings, as if the electro circuit would be too complex.
但是硬件的方式在处理较为复杂的算法时，往往电路逻辑过于复杂。
6.
Hostile or angry remarks made back and forth.
对骂往复地说有敌意的或含怒意的话
7.
Recurring or moving in cycles
"周期性发生的,往复运动的"
8.
Study on the Microstructures and Mechanical Properties of Reciprocating Extrusion Mg_2Si/Mg-Al Composites;
往复挤压Mg_2Si/Mg-Al基复合材料组织与性能的研究
9.
single movement to and fro when equilibrium has been disturbed
（偏离平衡位置的）一次往复振动
10.
Obstruction or vibration in the movement of roving traverse.
粗纱导纱器的往复运动不灵活或振动。
11.
Brian O'Neill now sought to revive the old high kingship.
布里安·奥尼尔想恢复往昔的最高王位。
12.
And it has been reconstructed and restored during the past hundred years.
往后花园经过近百年的重建和修复。
13.
It is said that passion makes one think in a circle.
据说激情会使人的想法循环往复。
14.
Cam: A device for converting circular or rotary motion into reciprocating motion.
凸轮:把旋转动力转为往复力的机件。
15.
In the circle, in a hoop that never ends.
造物的链条往复循环，生生不息。
16.
The principal type is the reciprocating-piston engine.
主要的类型是往复式活塞发动机。
17.
The Design of A New-type Multiplayer Vibration Drier of Reciprocating Converying
新型多层往复输送振动干燥机的设计
18.
The Motion Analysis and Application of the Reciprocation Rotation Step-by-Step Mechanism
往复转动步进机构的运动分析和应用