查询词典 root-mean-square

For a long period of time, widely used in the production of components of an effective insecticide rotenone is mainly from the genus Derris root extract, collect rotenone from the root to dig down to two meters deep, the human cost of not only high-cost and easy caused by soil erosion, many of the genus Derris production has stopped growing, leading to the market with rotenone as the main active ingredient of the biological pesticide manufacturers shortage of raw material sources.

相当长一段时间，在生产上广泛使用的有效杀虫成分鱼藤酮主要是从鱼藤属植物中的根部提取，采集鱼藤酮的根要挖掘至地下达两米深，不仅人力成本耗费高，而且容易造成水土流失，不少鱼藤属植物的产区已经停止种植，导致市场上以鱼藤酮为主要活性成分的生物农药制造企业原料来源短缺。

Results from the assessment model indicated that tree vigor(0.202), crown dieback(0.140), and butt rot(0.143) were the most important indicators with maximum weights, whereas tree lean(0.025), parasitism(0.017), root hazard(0.025), and root permeability(0.025) were less important with minimum weights.

从评价模型的权重结果来看，权重值较高的3个指标分别是树势(0.202)、顶梢枯死(0.140)、干基腐朽(0.143)，而权重值较低的指标则是倾斜(0.025)、寄生(0.017)、根部损伤(0.025)和通气透水性(0.017)。

Respecting this, zhang Guanxi's engineer takes goblet quaff, rely on on the chair to continue respecting: Baidu has 3 big competitors at present: It is Gu Ge, it is Tecent, it is the portal station; such as sina, Netease among them cereal song nip is giant capital and top technology actual strength, whole break down Yahoo after this is only dinosaurian, it is at the summit of one's power more, together with is familiar with Chinese to search a field gradually, hold concurrently with Adsense draw over the heart of the world stationmaster, discharge day is tall, except Baidu has powerful support in respect of governmental public relations, lose; of city lost territory already and Tecent, have the user group of nearly 200 million, the horse changes Teng Qian to reside Shenzhen, be covetous on searchs engine this cake is long already; another competitors namely each big door station, root deep tree is tall, more development searchs the criminal record of engine, all along also is to peep the; together with that search index props up this cup of a thick soup Baidu appears on the market now, capital drive technology, baidu now is must nod wildly, for discharge insanity, for silver insanity, you these careless root stationmaster are the act that understands Baidu very hard.

说到这，张冠西工程师拿起酒杯一饮而尽，靠在椅子上继续说到：百度目前有三大竞争对手：一是谷歌，一是腾讯，一是新浪、网易等门户站；其中谷歌挟庞大资金及顶尖技术实力，整垮掉雅虎这只恐龙后，更是如日中天，加之渐渐熟悉中文搜索领域，兼用adsense笼络了天下站长之心，流量日高，若不是百度在政府公关方面有强大支持，早已丢城失地；而腾讯，有近2亿的用户群体，马化腾潜居深圳，觊觎搜索引擎这块蛋糕已久；另外的竞争对手即各大门户站，根深树高，并多有开发搜索引擎之前科，向来也是偷窥搜索引擎这杯羹的；加之现在百度上市，资本驱动技术，百度现在是不得不疯狂点，为流量疯狂，为银子疯狂，你们这些草根站长是很难了解百度的举动的。

No longer need or use a similar double root consisting of three drill pipe drilling means root, it can reduce the derrick height, the weight of the base can be reduced.

不再需要采用类似双根或三根钻杆构成的立根钻井方式，因此井架高度可以减小，底座的重量可以减轻。

Root of will double palm is put in rachis both sides, inside palm root face, outside finger tip face, press to extrapolate forcibly at the same time.

将双手掌根放在脊柱两旁，掌根朝内，指尖朝外，同时用力向外推按。

Loop to ligate the appendical root or double titanium clips clipping,23 cases were directly used laparoscopic appendectomy to knot the appendical root,15 cases were used the interrupted suture appendectomy stump and fibrin glue coverage,9 cases of appendical remnant tissue were removed,covered with fibrin glue and placed silica drainge tube.

loop阑尾根部双重套扎或双重钛夹夹闭46例，直接腹腔镜下丝线打结阑尾根部23例，间断缝合阑尾残端加医用生物蛋白胶覆盖15例，清除阑尾残余组织加医用生物蛋白胶覆盖残端，放置硅胶引流管9例。

Conventional root canal materials do not have enough dentinal adhesion and can not achieve the ideal sealing properties. Our research team has developed the polyurethane root canal obturation system containing ZnO/TPU cone and dual cured urethane acrylate sealer.

中文摘要传统根管封填材主要以马胶锥体搭配各类传统封填剂，然而马胶锥体及各类传统封填剂之间黏著力不足，和牙本质之黏著亦不理想，因此无法达到根管密封的目的。

Fresh weight, dry weight, root activity, peroxides activity and catalase activity were measured. The results showed that FW, DW, root activity, POD activity and CAT activity of Vallisneria natans L and Elodea nuttallii were improved when ammonia concentrations were less than 50mgkg^(-1) and 500mgkg^(-1), respectively.

试验结果表明，氨氮起始质量分数＜50mgkg^(-1)和＜500mgkg^(-1)时可以分别促进苦草和伊乐藻鲜物质量、干物质量和根系活力的增加，大于此范围则会抑制苦草为Vallisneria natans L和伊乐藻Elodea nuttallii的生长。

Obtaining the root of the equation is the critical of improving the efficiency. Effective chord secant method was used to determine the root of the quation quickly.

解方程的根是提高截球效率的关键，本文采用高效的弦割法来快速计算方程的根。

Aiming at the problem of the odd point in the calculation of rotors torsional vibration characteristics by using the improved Riccati method, this paper presents a new viewpoint about how to confirm and remove the lost root and the added root of equation.

本文针对采用改进型Riccati方法计算轴系扭振特性中所出现的奇点问题，提出还需检测判断剩余量与振型，从而进一步确定和排除方程"漏根"和"增根"的方法。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。