往复的

Its working principles for the saws mounted on a frame on the saw blade, driven by the connecting rod with the saw frame for resumption of exercise often, at the same time through the movements transmission Continuous feed down for sport in order to achieve the sawing of stone processing.

其工作原理为装在锯框上的锯条在连杆的带动下随着锯框作往往复运动，同时通过升降传动机构连续向下作进给运动，从而实现对石材的锯切加工。

At the same time, the configuration of four-cylinder engine determine that it can not eliminate the influence of two order reciprocating inertial force by it's own balance.

根据四缸发动机的运动学分析可知，二阶往复惯性力的平衡是解决四缸发动机振动问题的关键。

The oil-quenching tank uses the steel plate structure, has the square shape, the rectangle, the circular, in the fuel tank the installment has the electric heating tube, outside the trough the installment has the oil pump, the stainless steel disc heat interchanger, the automatic oil constant temperaturecontrols the warm cabinet, its principle of work: When the work piece enters fuel tank quenching to cause frequently the oil temperature elevates, the oil pump starts to work, sucks in the stainless steel disc heat interchanger fuel tank's in high temperature oil, this time cools the circulating waterto put through automatically, carries on the heat transfer through disc heat interchanger's multi-layer stainless steel plate trough, causes the quenching oil which the process cools to return to the oil-quenching tank again, so moves back and forth the circulation, achieves the fuel tank to decreasetemperature the goal.

淬火油槽采用钢板结构，有方形、长方形、圆形，油槽内安装有电加热管，槽外安装有抽油泵、不锈钢板式换热器，自动油恒温控温柜，其工作原理：当工件频繁进入油槽淬火引起油温升高时，油泵开始工作，将油槽内的高温油抽入不锈钢板式换热器，此时冷却循环水自动接通，通过板式换热器的多层不锈钢板槽进行换热，使经过冷却的淬火油再返回淬火油槽，如此往复循环，达到油槽降温目的。

The quenching oil trough uses the steel plate structure, has the square shape, the rectangle, the rotundity, the electric heating tube installed in the fuel trough , the oil pump and stainless steel disc heat interchanger installed outside of the trough, the automatic oil constant and controlling temperaturetank, its principle of work: When the work piece enters fuel trough quenching to cause frequently the oil temperature elevates, the oil pump starts to work, sucks in the stainless steel disc heat interchanger fuel tank's in high temperature oil, this time cools the circulating water to put through automatically,carries on the heat transfer through disc heat interchanger's multi-layer stainless steel plate trough, causes the quenching oil which the process cools to return to the oil-quenching tank again, so moves back and forth the circulation, achieves the fuel tank to decrease temperature the goal. When the

淬火油槽采用钢板结构，有方形、长方形、圆形，油槽内安装有电加热管，槽外安装有抽油泵、不锈钢板式换热器，自动油恒温控温柜，其工作原理：当工件频繁进入油槽淬火引起油温升高时，油泵开始工作，将油槽内的高温油抽入不锈钢板式换热器，此时冷却循环水自动接通，通过板式换热器的多层不锈钢板槽进行换热，使经过冷却的淬火油再返回淬火油槽，如此往复循环，达到油槽降温目的。

The oil-quenching tank uses the steel plate structure, has the square shape, the rectangle, the circular, in the fuel tank the installment has the electric heating tube, outside the trough the installment has the oil pump, the stainless steel disc heat interchanger, the automatic oil constant temperature controls the warm cabinet, its principle of work: When the work piece enters fuel tank quenching to cause frequently the oil temperature elevates, the oil pump starts to work, sucks in the stainless steel disc heat interchanger fuel tank's in high temperature oil, this time cools the circulating water to put through automatically, carries on the heat transfer through disc heat interchanger's multi-layer stainless steel plate trough, causes the quenching oil which the process cools to return to the oil-quenching tank again, so moves back and forth the circulation, achieves the fuel tank to decrease temperature the goal.

淬火油槽采用钢板结构，有方形、长方形、圆形，油槽内安装有电加热管，槽外安装有抽油泵、不锈钢板式换热器，自动油恒温控温柜，其工作原理：当工件频繁进入油槽淬火引起油温升高时，油泵开始工作，将油槽内的高温油抽入不锈钢板式换热器，此时冷却循环水自动接通，通过板式换热器的多层不锈钢板槽进行换热，使经过冷却的淬火油再返回淬火油槽，如此往复循环，达到油槽降温目的。

In order to enhance effectiveness, scraping in business card printing and membership card making Roller blade rotating at the same time, also in cards and membership cards to make the length of the roller surface in the direction of do periodic reciprocating motion.

为了提高刮墨效果，在制卡和会员卡制作版辊转动的同时，刮刀也在制卡和会员卡制作版辊表面的长度方向上做周期性的往复运动。

In order to predict the principal stress in the direction of zero principal strain correctly, it is necessary to understand elastic-plastic behavior of soil during load-decreasing process.

研究土在减载和往复荷载下的弹塑性特性，建立反映土减载屈服的弹塑性本构模型，具有重要的学术价值和工程意义。

A projection on a machine part, such as a pawl for controlling the motion of a ratchet wheel in a watch escapement, that engages the teeth of a ratchet wheel to convert reciprocating motion to rotary motion or vice versa.

棘爪机器部件上的一个突出部分，例如在一个观察棘轮装置中控制棘轮运转的棘爪，用来衔接棘轮的齿，以将往复运动转换为旋转运动；反之亦然

One idea only still throbbed lifelike within me — a remembrance of God: it begot an unuttered prayer: these words went wandering up and down in my rayless mind, as something that should be whispered, but no energy was found to express them.

有一个念头仍像生命那样在我内心搏动——上帝的怀念，并由此而产生了无言的祈祷。这些话在我没有阳光的内心往复徘徊，仿佛某些话该悄声倾吐出来，却又无力去表达它们。

One idea only still throbbed life-like within me- a remembrance of God: it begot an unuttered prayer: these words went wandering up and down in my rayless mind, as something that should be whispered, but no energy was found to express them

有一个念头仍像生命那样在我内心搏动——上帝的怀念，并由此而产生了无言的祈祷。这些话在我没有阳光的内心往复徘徊，仿佛某些话该悄声倾吐出来，却又无力去表达它们。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。