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The response may change the fate of the turions in the second year,and affect the maintenance of the populations.

在野外池塘中,利用3种不同营养状况的底质研究底质营养盐对菹草生长及养分分配的影响,结果表明:沉水植物菹草面对底质营养盐的胁迫出现了急性的生理生化反应,在生长初期叶片总的可溶性糖含量在肥沃的底质上高于贫营养底质上;根、茎、叶和石芽各构件都具有异速生长现象,并且表现规律不一样;菹草的根冠比随底质营养盐的不同而变化;随着营养条件对菹草生长胁迫加重,根、冠的异速生长愈明显,同时石芽的N∶P和C∶N比率显著受底质营养盐的影响,而菹草叶片和茎N∶P和C∶N比率不受底质肥力的影响,这些响应将改变石芽第2年的命运和影响种群的维持;在胁迫生境下,菹草首先分配资源到无性繁殖体--石芽上以便维持种群的延续,以回避策略应对底质营养盐胁迫。

IF REPLACING BY PIECE, REPLACE FACE PLATE FIRST USING BACK WELDING,THE SIDE PLATES,EDGE PLATES AND MEMBERS INSIDE SHALL BE STRAIGHTED IF DEFORMED,AND THEN STARTED FITMENT, AND THEN SECURED,WELDING. AT THE SAME TIME, THE CUTTING FLAME SHALL BE CONTROL WHEN CUTTING, AND FORBID TO CUTTING THE BASE

舱盖板整块换新的,可以先换新面板,但面板割除时要采用退割法,里面的侧板、边板和构件如变形需校正后才能装配面板,全部装配好后再定位焊接好,同时在切割的时候尽量控制切割火焰,并严禁割伤母材,从而加大变形量。

Chapter 4: To the modify of GBJ10-89, the method of stress of stirrups and bent up bars under fatigue loading was studied and new formulas for fatigue design were proposed.

第四章研究了钢筋混凝土受弯构件的疲劳计算方法,针对当前的规范修订,提出了一个能够用于工程设计的钢筋疲劳应力计算公式。

Friction, wear and stiction are the important factors which affect the performance and reliability of MEMS.

由于MEMS结构尺寸微型化后,构件之间的间距处在纳米量级范围,摩擦及其粘着等行为严重影响了MEMS的可靠性。

Surface modification of the microstructure materials has been an effective means of improving friction, reducing wear, restraining stiction and enhancing stability of MEMS.

分子有序薄膜技术可以有效改善构件表面的摩擦、降低磨损,是解决MEMS摩擦磨损问题的有效途径之一。

Surface modification of the microstructure materials has been an effective means to improve friction, reduce wear, restraining stiction and enhancing stability of the MEMS.

构件材料表面改性被认为是改善摩擦、降低其粘附、减小磨损、提高MEMS系统稳定性的有效方法。

The results show that, the chloride concentrations and diffusion coefficients are both a one-humped function of elevations (can also be the time scale of seawater infiltration), they increase with the increase of elevation until they get to the peak value, and then decrease with the increase of elevation; an evident relationship is being between the surface chloride concentrations and the wave forces acted on the concrete surface, while there is no much difference among the diffusion coefficients; the diffusion coefficients get to bigger as the depth from the concrete surface increase in the influence of the capillary structures evolution and chloride concentration, but this tendency of change was alleviated with the increase of depth.

研究结果表明:氯离子侵蚀混凝土设施的竖向分布规律为氯离子浓度、扩散系数与标高之间同为单峰函数分布,先随高程变大而变大,达到峰值后,随高程变大而减小;氯离子侵蚀混凝土设施的环向分布规律为混凝土构件表面氯离子浓度、氯离子通量与波浪力之间有明显的对应关系,波浪力越大,则表面氯离子浓度和氯离子通量越高,而扩散系数在各方位角差别不明显;由于混凝土长期服役过程中内部毛细孔隙结构演化以及氯离子浓度的影响,氯离子扩散系数随混凝土深度变大而变大,但这种变化趋势随深度逐渐趋缓。

The structural member having first and second sidewalls (62 and 68), each having an upper end and a lower end.

构件包括第一和第二侧壁(62和68),每一个侧壁具有一个上端和一个下端。

The joining members (21) extend beyond the joined wall panel sections (14) and provide the interconnection between the floor (15), wall (14) and roof panel sections.

连接构件(21)延伸过所连接的墙面板部分(14),从而提供地板(15)、墙(14)和屋顶面板部分的相互连接。

At the stage of preliminary design for ship structure, an expert system is urgently needed to configure on its own the midship section of a specified ship type and, according to a particular classification society's rule s, to determine and optimize the structural scantlings in order to timely prepar e the relevant bidding materials.

在船舶结构初步设计阶段,极需一种专家系统针对所选船型的中剖面进行自主构思,按某一船级社规范确定其构件尺寸,并进行结构优化,以便及时提供有关报价资料。

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推荐网络例句

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石!

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻,也许正是在通往天国的路上,我体验着这白色的晕旋。

When you click Save, you save the file to the host′s hard disk or server, not to your own machine.

单击"保存"会将文件保存到主持人的硬盘或服务器上,而不是您自己的计算机上。