无根的

Ultrasound has special superiority on instrumentation and bactericide of root canals.

从临床实际应用的目的出发，寻求一种杀菌能力强且无刺激性及毒副作用的根管超声冲洗液十分必要。

In accordance with increasing concentrations of Ca~(2+), Ca~(2+)-ATPase and H~+-ATPase activity in plasma membrane and tonoplast of cucumber root were increased significantly at first, then decreased slightly later; H~+-ATPase activity in plasma membrane and tonoplast of cucumber leaf was changed unremarkably; Ca~(2+)-ATPase activity in plasma membrane and tonoplast of cucumber leaf was increased significantly at first, then decreased slightly later.

低温下，随Ca~(2+)浓度的升高根中质膜和液泡膜Ca~(2+)-ATP酶和H~+-ATP酶活性及叶片中质膜和液泡膜Ca~(2+)-ATP酶活性先升高后下降，叶片中质膜和液泡膜H~+-ATP酶活性无显著变化，说明适当增加营养液中Ca~(2+)浓度后，可提高ATP酶的活性减轻低温伤害。

The above results revealed that the combining application of EMPs and e-PTFE membrane could significantly promote the treatment of furcation defects.

上述结果表明：EMPs与eITFE膜联合应用可明显促进人工根分叉部位牙周组织缺损的愈合，尤其是无细胞性牙骨质的再生。

With semi-lignified branches of 2-year-old C. surattensis, that haleness and no diseases and pests as the materials, and treatment with clean water as CK, the effects of 250, 500, 1000 mg/L indole butyric acid and 250, 500, 1000 mg/L naphthalene acetic acid on survival rate, plant height, average rooting number and root length of shoot were studied.

方法］以生长健壮、无病虫害2年生黄花槐的半木质化枝条为材料，以清水处理为对照，研究250、500、1000 mg/L吲哚丁酸和250、500、1000 mg/L萘乙酸处理对枝条成活率、株高、平均生根数及根长的影响。

Nothing could BE seen of Icarus or his wings but a few white feathers floating on the water.

伊卡洛斯和他身上的翅膀已踪影全无，唯有几根白色的羽毛漂浮在水面上。

Plant height, leafstalk length, leaf length, leaf width and leaf thickness of water hyacinth did not vary significantly at the range of pH 3.5 to 9.0, while root length, stolon length and root vigor declined obviously with the increasing pH.

随营养液pH值升高，水葫芦的相对生长率从6.12倍降到3.08倍。pH值在3.5—9.0之间，水葫芦株高，叶柄长度，叶片的长度、宽度和厚度在不同酸度条件下无显著差异，根长、茎长和根系活力随pH升高明显下降。

There was a positive correlation between the concentration of total P and application of phosphate fertilizer in plant shoot and root.

更多度呈显著正相关；随着磷用量的增加，小白菜、白菜地上部和根中全氮、全钾浓度无显著差异。

The recombinant plasmid pBI121-VP6 was transformed into Agrobacterium tumefaciens strainLBA4404 by freeze-thawing method and the introduced into the sterile tube culture shoot of tobacco NC89 and baoding alfalfa by leaf disc infection method.

以冻融法将pBI121-VP6重组质粒导入根癌衣杆菌LBA4404，用叶盘法转化于NC89烟草和保定紫花苜蓿的无菌试管苗。

PHap1 was first transformed into Agrobacterium tumefaciens strain LBA4404 by electroporation first and then introduced into the sterile tube culture seedlings of different susceptible potato eultivars'Mira','Zhong-5-1'and'Jinguan', and tobacco cultivar NC89, respectively, by the leaf disc infection method.

以电激法将pHap1导入根癌农杆菌LBA4404，用叶盘法分别转化马铃薯青枯病感病品种米拉、中-5-1、金冠以及烟草感病品种NC89的无菌试管苗。

Leakage in the initial observation to determine the basis of the leakage site, and then manually set car observation, if the leakage were no significant changes in static and dynamic sealing ring problem; such as the disk when there are significant changes in leakage can be concluded that the dynamic , static friction ring problems; such as leakage of medium along the jet axis, w你好le moving most of Central ring problems, leakage to the surrounding medium or from the water spray cooling holes in the leakage, the seal ring for static failure.

杂质泵安装静试时泄漏机械弥缝安装调试好后，一般要进行静试，察看泄漏量如泄漏量较小，多为动环或静环弥缝圈存在问题；泄漏量较大时，则表白动、静环磨擦副间存在问题在开端察看泄漏量、判断泄漏部位的根蒂根基上，再手动盘车察看，若泄漏量无明显变化则静、动环弥缝圈有问题；如盘车时泄漏量有明显变化则可下定论是动、静环磨擦副存在问题；如泄漏介质沿轴向喷洒，则动环弥缝圈存在问题居多，泄漏介质向四周喷洒或从水冷却孔中漏出，则多为静环弥缝圈失效此外，泄漏通道也可同时存在，但一般有主次区分，只要察看细致，认识结构，一定能正确判断

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。