不能返回的

In the spiral pipe heat exchanger exports terminal, the ammonia steam temperature has been heated up 85 ℃--95 ℃, by now, the ammonia steam had the 45kg-55kg/cm2 ammonia steam pressure, sent in the ammonia steam turbine through the constant temperature pipeline, impelled ammonia steam turbine revolving, led the generator electricity generation;After the ammonia steam makes the merit release energy, the temperature drop, the returns ammonia storage tank, passes through again adjusts the press pump to press into the spiral pipe-type heat exchangers to carry on the next circulation;Including the ammonia steam turbine entire ammonia steam road is becomes the independent closed cycle system, is isolates completely with the outside air;The ammonia steam only plays the carryhome and the shift energy role, in the electricity generation process does not consume the actuating medium, the stored energy carrier water also is only gets up the carryhome and the shift energy function,The waterway also is from becomes the independent closed cycle system, in the electricity generation process also the needless water consumption, through the actuating medium ammonia steam and the stored energy carrier water unceasing shuttle service, transforms through the heat interchanger the solar energy as the actuating medium ammonia steam heat energy and the kinetic energy,With the aid of the ammonia steam turbine heat - machine transformation function and the generator machine - electricity transformation function, has realized the solar energy hot - electricity entire conversion process, transforms continuously the solar energy into the electrical energy, power supply for foreign;The low temperature generating system must solve three big technical keys:One, the anticorrosion (has actuating medium has strong corrosiveness), two is Explosion-proof (Some actuating medium Can have the detonation with the air mix when divulging, controls warm malfunction, elevates temperature suddenly also can have detonation), three is guards against the revolution axis divulging

以太阳能低温发电系统为例，低温发电方法是这样进行的：以水作为储能载体的太阳能采集器将太阳能采集起来，将水温提升至85℃--98℃；用氨作为工作介质储于氨储罐及氨汽路中；采用螺旋管型热交换器；用调压泵将氨储罐中的氨汽压入螺旋管型热交换器的螺旋管内，用调压泵将携带太阳能的85℃--98℃的储能载体热水压入螺旋管型热交换器的螺旋管外壁空间进行循环式热交换，在热交换器的螺旋管出口端，氨汽温度已被加热到85℃--95℃，这时，氨汽具有45kg—55kg/cm2的氨汽压力，通过恒温管道送入氨汽轮机，推动氨汽轮机旋转，带动发电机发电；氨汽作功释放能量后，温度下降，返回氨储罐，再经调压泵压入螺旋管型热交换器进行下一次循环；包括氨汽轮机在内的整个氨汽汽路是自成独立的封闭循环系统，与外界空气是完全隔绝的；氨汽只起携带和转移能量的作用，发电过程中并不消耗工作介质，储能载体水也是只起携带和转移能量的作用，水路也是自成独立的封闭循环系统，发电过程中也不消耗水，通过工作介质氨汽和储能载体水的不断循环运行，通过热交换器将太阳能转化为工作介质氨汽的热能和动能，借助氨汽轮机的热—机转化功能和发电机的机—电转化功能，实现了太阳能的整个热—电转化过程，将太阳能源源不断地转变为电能，对外供电；低温发电系统要解决的三大技术关键：一是防腐（有的工作介质具有较强的腐蚀性）、二是防爆（有的介质泄漏与空气混合会产生爆炸，控温失灵，急剧升温也会产生爆炸）、三是防轴漏（汽轮机是动态旋转体，必须解决工作介质的防轴漏问题）。

However, the size and amount of microporosity increase with the recycle material proportion, and the microporosity in 100% recycled alloy is much more than that in the virgin alloy.

当返回料比例不超过80％时，返回料的加入对合金的高温持久性能和室温拉伸强度没有明显影响，但室温延伸率有所下降；100％返回料合金的力学性能明显下降，其高温持久寿命和室温延伸率已不能满足技术条件要求。

The Search engine is not perfect because of the low retrieval efficiency, the high rate of mistakable or missing outcome, the large amount of returned information and the unsolved non-text document retrieval. The mode of "one search for all user", can't meet the user's individualized message requirements.

搜索引擎检索效率不甚理想，漏检误检率较高；返回信息量太大，非文本文件检索困难；"一个搜索适用所有用户"的模式，不能满足用户个性化信息需求。

Practically all Python objects have a string presentation either evaluatable from repr( or '', or printable from str. The print statement automatically invokes the str function for an object. This gets even better. When you are defining your own objects, there are hooks for you to create string representations of your object such that repr and str (and '' and print) return an appropriate string as output. And if worse comes to worst and neither repr or str is able to display an object, the Pythonic default is at least to give you something of the format

事实上，所有的Python对象都有一个字符串表示形式（通过repr函数，''或者str函数来展现）。print语句自动为每个对象调用该对象的str方法，这种机制的一个额外的好处就是在你定义你自己的对象时，你可以利用这种机制定义repr(，str或者''或者print来为你的对象创建一种字符串表达形式，它可以在被调用时返回适当的字符串描述信息，这样即使在坏的不能再坏的情况下，repr或者str起码可以给你返回一个对象的信息，Pythonic方式的默认做法是起码给你返回想如下格式的信息

As they are no longer able to live in their own homes, they have to live in each other's house pretending to be the sudden change of personality in each of them, especially in academic results, Dae-Ho and Eun-Bi must find a way to change their bodies back before Eun-Bi's family emigrates.

由于这样，他们不能返回自己家中唯有往对方的家中暂住。周遭的人对于他们行为的转变，特别是学业成绩都感到非常奇怪。

As they are no longer able to live in their own homes, they have to live in each other's house pretending to be the sudden change of personality in each of them, especially in academic results, Dae-Ho and Eun-Bi must find a way to change their bodies back before Eun-Bi's family emigrates.

由於這樣，他們不能返回自己家中唯有往對方的家中暫住。週遭的人對於他們行為的轉變，特別是學業成績都感到非常奇怪。

Well-established in their land of freedom, with an ocean between them and their former homeland, they ceaselessly praise the yoke that they were unable to bear, proudly say the name of Emperor and dream of Germanizing through language and customs a large part of the new world where they are established without the slightest intention of returning.

在美国这片自由的国土上安居乐业，与他们古老的祖国远隔重洋，不断歌颂他们曾经不能忍受的枷锁，骄傲地高呼皇帝的名字，梦想通过语言与习俗使新大陆的一大部分地区日尔曼化，他们在那里生活，却从不想返回祖国。

We use zero to mark available elements of heap; therefore, we cannot return a reference to heap[0] — if it were a set, its elements would contain the index value zero.

我们用0值来标识heap数组中可用的成员；所以不能返回heap[0]的引用——因为如果它是一个集合，那么它所包含的元素可能包括索引值0。

We use zero to mark available elements of heap; therefore, we cannot return a reference to heap[0] — if it were a set, its elements would contain the index value zero.

我们用0值来标识heap数组中可用的成员；所以不能返回heap[0]的引用——因为如果它是一个集合，那麼它所包含的元素可能包括索引值0。

The object of the game is to force the ball down onto to the floor of the opponents court, or to put them under so much pressure that they are unable to return the ball.

该物体的游戏，以迫使球在地板上的对手法院，或使他们非常大的压力下，他们不能返回球。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。