正转

Positive and negative regulation In negative regulation of prokaryotic gene expression,bound repressor prevents transcription of the structural genes.

正调控和负调控在原核生物基因表达的负调控中，与阻遏物的结合能够阻止基因的转录。

［Objective］ To construct a recombinant eukaryotic expression vector of transcriptional repressor Bmi-1 gene.

［目的］克隆转录抑制因子Bmi-1基因并构建其正、反义真核表达载体，为研究其功能及其作用机制奠定基础。

The main products include: large type heating furnace of continuous walking type furnace and annular furnace、 Tilting Aluminum Melting、holding temperature furnace、 homogenization furnace、 annealing furnace、quenching furnace、aging furnace used for aluminum material;copper material of heating furnace、 annealing furnace（brightness/commonly）、reverberator etc; heating furnace、quenching furnace、tempering furnace、drying furnace、sintering furnace、carburizing nitriding furnace、aging furnace、quenching and high tempering furnace、normalizing furnace、galvanizing line and color coating line used for steel;sand core surface drying furnace、casting annealing furnace used in automobile generator profession;the main type furnaces include: pusher-type furnace、roller- type furnace、rotary- type furnace、 pit type furnace、 mesh-belt furnace、well- ty

公司的主要产品包括：步进炉、环行炉等大型加热炉；铝材方面的熔铝炉、保温炉、加热炉、均质炉、退火炉、固熔炉、时效炉等；铜材方面的加热炉、退火炉、反射炉等；钢铁方面的加热炉、淬火炉、回火炉、烘干炉、烧结炉、渗碳炉、氮化炉、时效炉、调质炉、正火炉、镀锌线、彩涂线等；汽车发动机行业的砂芯表干炉、铸件退火炉等；主要炉型有推杆炉、辊底炉、转底炉、坑式炉、网带炉、井式炉、燃油炉、箱式炉、台车炉、多用炉、钟罩炉、真空炉等。

The main products include: large type heating furnace of continuous walking type furnace and annular furnace、 Tilting Aluminum Melting、holding temperature furnace、 homogenization furnace、 annealing furnace、quenching furnace、aging furnace used for aluminum material;copper material of heating furnace、 annealing furnace（brightness/commonly）、reverberator etc; heating furnace、quenching furnace、tempering furnace、drying furnace、sintering furnace、carburizing nitriding furnace、aging furnace、quenching and high tempering furnace、normalizing furnace、galvanizing line and color coating line used for steel;sand core surface drying furnace、casting annealing furnace used in automobile generator profession;the main type furnaces include: pusher-type furnace、roller- type furnace、rotary- type furnace、 pit type furnace、 mesh-belt furnace、well- type furnace 、gas fired furnace、 box type furnace、trolley furnace、multi-purpose furnace、 bell-type furnace 、vacuum-type furnace and so on.

公司的主要产品包括：步进炉、环行炉等大型加热炉；铝材方面的熔铝炉、保温炉、加热炉、均质炉、退火炉、固熔炉、时效炉等；铜材方面的加热炉、退火炉、反射炉等；钢铁方面的加热炉、淬火炉、回火炉、烘干炉、烧结炉、渗碳炉、氮化炉、时效炉、调质炉、正火炉、镀锌线、彩涂线等；汽车发动机行业的砂芯表干炉、铸件退火炉等；主要炉型有推杆炉、辊底炉、转底炉、坑式炉、网带炉、井式炉、燃油炉、箱式炉、台车炉、多用炉、钟罩炉、真空炉等。

Motor control, with 51 development, motor control reversion, to the number of degrees, coding control.

电机控制，用51开发，可控制电机正反转，转多少度，编码器控制。

A fox had fallen into a well, and had been casting about for a long time how he should get out again, when at length a goat came to the place, and wanting to drink, asked Reynard whether the water was good, and of there was plenty of it .

一只狐狸掉在一口井里，转了很久怎样再跳上去，最后一只山羊来到这里，他正想喝水，便问狐狸这水好不好，还多不多，狐狸掩饰起他的真实危险处境，回答说："下来吧，我的朋友，这水好得使我喝不够，而且多的用不完。"

A fox had fallen into a well, and had been casting about for a long time how he should get out again, when at length a goat came to the place, and wanting to drink, asked Reynard whether the water was good, and of there was plenty of it .The fox, dissembling the real danger of his case, replied :"comedown, my friend, the water is so good that I can not drink enough of it, and so aboundant that it can not be exhausted ."

一只狐狸掉在一口井里，转了很久怎样再跳上去，最后一只山羊来到这里，他正想喝水，便问狐狸这水好不好，还多不多，狐狸掩饰起他的真实危险处境，回答说："下来吧，我的朋友，这水好得使我喝不够，而且多的用不完。"

A fox had fallen into a well, and had be casting about for a long time how he have to get out one abundance time, when at length a goat arrived to the socate, and requireing to drink, question Reynard whetIT the runing runing water were good, and of tITe were plenty of it .

一只狐狸掉在一口井里，转了很久怎样样再跳上去，最后一只山羊来到那里，他正想喝水，便问狐狸这水好不好，还多不多，狐狸掩饰起他的真事危险处境，回答说："下来吧，我的哥们，这水好得使我喝不够，而且多的用不完。"

The tower crane has no Central Collection of Central,but it has slewing limiter,it can just rotate left and right 1.5 rounds.

3.5.2.12 该塔机无中央集电环，设有回转限位器，正反转都只能转 1.5 圈。

Figure 10.1shows typical layouts of interchanges at three-legged junctions.The geometry of the interchange can be altered to favor certain movements by the provision of large turning radii and to suitable topography of the site.The trumpet interchange has been found suitable for orthogonal or skewed intersections.Figure 10.1a favors the left turn on the freeway by the provision of a semidirect connecting ramp.

数字10.1shows典型的布局交汇处，在三条腿的junctions.the几何的交汇处可以改变偏袒某些运动所提供的大转折半径和合适的地形的site.the小号交汇处已找到适合的正交或倾斜intersections.figure 10.1a ）有利于左转，就在高速公路上所提供的半连接匝道。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。