查询词典 time zone

To better understand the roles of LsrA protein in nodulation, a series of analyses of nodules using scanning electron microscopy, genetic and biochemical approaches have been carried out. Our analyses suggest that the lsrA1 nodules contain bacteroids in the invasion and establishing zone only. The lsrA gene expression is active early in the invasion zone and activated later than bacA genes. The lost of LsrA protein dramatically reduced the expression of nifA and fixK, and completely blocked the expression of the nifH gene for nitrogenase. LsrA protein functions early in the bacteroid development and it is essential for the development nitrogen fixing bacteroids.

前期的工作中，苜蓿中华根瘤菌Rm1021中90个候选LysR基因已经被定向插入突变，并筛选在自生生长时期、共生生长时期的表型，以期寻找更多在自生状态或共生固氮中有功能的LysR转录因子。1 针对前期鉴定出的共生固氮必需的lsrA基因，我们应用了一系列扫描电子显微镜技术、生物化学、分子遗传学等方法，发现lsrA基因主要在根瘤侵染区开始表达，表达时序也在侵染阶段左右，但晚于bacA基因表达；LsrA蛋白缺失后根瘤固氮区中缺乏具有固氮能力的类菌体，nifA和fixK基因的转录水平降低，nifH基因的转录被完全阻断，因此LsrA蛋白为根瘤发育所必需，是新的根瘤发育信号传导途径成员。2 通过表型筛选我们鉴定了苜蓿中华根瘤菌的oxyR基因，并研究了它的调节特性。oxyR突变后，苜蓿中华根瘤菌对过氧化氢敏感性提高，适应性降低。

At least one additional transverse thread (50, 51) is interwoven in at least one seam zone with the longitudinal thread system to provide increased surface contact for better batt adhesion in the seam zone.

至少一根辅助横向线(50，51)在至少一个接缝区(40)中与纵向线系交织，以在接缝区中得到更好毛层粘合所需要的增加的表面接触。

But the vegetations changes in plain zone were slower.(4) Study on the driving forces and driving mechanism of the change of vegetation cover in HHH zone The farmland vegetation area received the common drive of climate and the society factors, but climate factors were the main driving forces for annual harvest crop or biannual irrigated and dry harvest crop, and society factors were the main driving forces for biannual harvest crop or biyearly tri-harvest dry crop.

4黄淮海地区植被覆盖变化驱动力与驱动机制研究不同植被覆盖类型，其NDVI变化的驱动力不同：一年一熟粮作区植被覆盖变化受到气候和社会经济因子的共同驱动，但以气候驱动为主；一年两熟或两年三熟旱作区植被覆盖变化受到社会经济和气候因子的共同驱动，但在主要驱动因子中，社会经济的影响更大一些；一年水旱两熟粮作植被覆盖变化主要受气候因子驱动，同时，社会经济因子也会在一定程度上影响植被NDVI的变化。

According to forms of development, we Dandong City Hongda Trading Co., Ltd., in the border zone set up the zone offices.

根据形式的发展，我们丹东市鸿达贸易有限公司，在边境合作区成立了合作区办事处。

On conditions that the dead zone model parameters and the bound of the uncertain nonlinear term are all unknown, the proposed adaptive controller can eliminate the effect of actuator dead zone faults well and ensure bounded-errors tracking.

在死区模型所有参数以及系统非线性不确定项上界均未知的情况下，所设计的自适应控制器可以很好地消除执行器死区故障的影响，保证跟踪误差有界。

In addition, the boundary interval is clearly recognizable by the depletion of isotopic carbon ratios and the normal polarity zone appearing above the Late Wuchiapingian reversed polarity zone.

界线层的碳同位素存在明显的负漂移，正磁极性带出现在吴家坪晚期的反极性带之上。

The so-called security zone is in the buffer zone between South and North Korea.

所谓的联安全地带，也就是在南北韩之间的缓冲地带。

We also discussed the buffer zone, the device driver through the buffer zone, handle calls and data applications.

我们还要讨论缓冲区，设备驱动程序将通过缓冲区，调用和处理应用提供的数据。

The conveyor belt products are cotton canvas belt, nylon belt, polyester zone, with steel cord, cable belt, steep conveyor belt, the entire core flame retardant PVC and PVG zone, and can provide all kinds of special Performance (fire-retardant, heat, acid and alkali-resistant, cold, high temperature and food use) of all types of conveyor belt, the full range, from a series.

公司的输送带系列产品有棉帆布带、尼龙带、聚酯带、钢丝绳芯带、钢缆带、大倾角输送带、整芯难燃PVC和PVG带等；并能提供各种特殊性能（阻燃、耐热、耐酸、耐碱、耐寒、耐高温及食品用）的各类输送带，品种齐全，自成系列。

Laboratory experiments suggest that capillary rise and evaporation play an important part in determining the position of emplacement of ions in the soil profile: in nature, root-zone transpiration also plays a part in solute deposition/adsorption within the evapo-transpiration zone.

实验室的实验表明，毛细管上升和蒸发在决定进驻的离子在土壤剖面位置的一个重要组成部分：性质，根区蒸腾也起着溶质沉积在部分/吸附在土壤水分蒸发，蒸腾区。

Panorama Many people are dancing in a large sitting room.

在一个大客厅里，许多人在跳舞。

We fully understand how a microwave oven cooks food, it is first necessary to talk ...

我们充分理解一个微波炉煮的食物，这是首先要谈。。。