回

Based on the experiments, the relations between the Nusslt number Nu, and Reynolds number Rc are obtained by wall-temperature method, and it is analysised that the economy and the manufacturing method of a helical recuperator.

本文在较大的迪恩准数范围内用壁温法研究了螺旋回热器的传热性能，得到了其传热性能关系式，并分析了螺旋回热器的制造方法及其经济性能。

For saving the fuel and increasing the efficiency of gas turbine cycle, recuperator is used to warm-up the air entering the combustion of gas turbine by absorbing the heat of exhaust in recuperation cycle.

在回热循环中，回热器利用燃机排气中的余热(一般温度为600℃左右)来预热进入燃气轮机燃烧室的气体，从而达到节省燃料、提高燃机效率的目的。

In addition, minimum volume of the plate recuperator can be gained by changing the gas-air plate space proportion. Under the same required recu...

在同等回热效率要求下，板翅式回热器体积远小于板式，其紧凑度更高，而阻力上升也不明显。

By making use of contraction mapping principle and similar matrices and graphical method ,this paper discusses some methods of asking its limit in accordance with recurrent sequence of number.3. The criteria whether Ⅰ,Ⅱ,Ⅲ types of crank-rocker mechanisms exist are given and the graphical method of synthesizing crank-rocker mechanisms with quick return characteristics are proposed.

针对目前具有急回特性的曲柄摇杆机构综合中存在的不足，对这类机构的图解法综合进行了深入的探讨，得到了行程速比系数和摇杆摆角取不同值时，Ⅰ型、Ⅱ型、Ⅲ型曲柄摇杆机构是否有解的判据，并给出用图解法综合具有急回特性的曲柄摇杆机构的方法。

Remelt the AZ91D magnesium ingot together with different weight ratio recycled scrap in this experiment.

本文利用AZ91D镁合金锭作为原料，分别将它们加入不同含量的回炉料进行重熔，分析用回炉料生产的镁合金重熔后的组织和性能。

Combined with the real situation of Chinas real estate investment fund and private fund, the paper applies the very ideas to the money circulation in housing real estate enterprises and put forward several methods to circulate money and funds, such as gradual payment mortgage, reducing balance repayment mortgage,fixed rate mortgage, renegotiable rate mortgage, rollover mortgage, shared appreciation mortgage, growing equity mortgage, adjustable rate mortgage.

结合中国房地产投资基金、私募基金呼声日高的现实情况，本文将相应的思想尝试运用于房地产业的融资中，提出了合作开发融资、工程承包融资、租赁融资、回租、回买、渐进式抵押贷款、递减式还款抵押、定息抵押、重新协议利息抵押、或滚动抵押、比例升值抵押、加快还本抵押和可调整利率抵押等多种房地产融资方式。

For easy searching, only topic poster can post the photos, but not the replier , or you will find it hard to look for a specific photo in a certain reply of a certain post

为方便大家日后找寻照片，只限发表文章的人贴图，回覆者不要在该文章下再贴上照片，否则日后将很难在某某文章中的第某个回覆中找回照片

II. RECAPTION or reprisal is another species of remedy by the mere act of the party injured.

II。 领回或夺回是由被伤害的当事人所进行的另一种纠正。

As the American children at home, if can pack the alarm clock, most parents praise children, if not installed, many parents and children together, even on the clock to encourage children to open, reshipment again.

例如美国孩子拆了家里的闹钟，若能装回，多数家长会称赞孩子，若是装不回，许多家长会与孩子一道把闹钟装上，甚至鼓励孩子再拆、重装一次。

The tests of hysteretic restoring force characteristics of the steel rod are fulfilled, and the hysteretic curves of the model are compared with those from the tests.

完成了钢棒的滞变恢复力特性的试验，并进行了模型滞回曲线与试验滞回曲线的比较。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。