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O Most golf courses aerate two to three times a year – once in the spring, early summer and fall. Aerification frequency of T-1 is similar to other bentgrasses.

o 大多数球场一年打孔2-3次----春季，早夏和秋季。T-1的打孔频率和别的翦股颖品种一样。

Here, you can see the Mabuchi 550 12-volt motors, the Graupner Speed-Profi 50 Reverse BEC Speed Controllers, the Master Airscrew 3.0:1 Ratio Gearboxes, the brass stuffing tubes with Oilite bearings and O-ring seals and the 3/16 diameter propeller shafts.

在这里，您可以看到万宝至五五零一二伏马达，格劳普纳速度Profi的50扭转选委会的速度控制器，主airscrew 3.0：1的比例，变速箱，黄铜填料管oilite轴承和O形密封圈和3 / 16 直径螺旋桨轴。

Yolanda O ' Bannon is executive assistant to biochemist and former National Academy of Sciences President Bruce Alberts.

Yolanda O ' Bannon是生物化学家的行政助理，之前她是Bruce Alberts国家科学院的主席。

O. Wilson calls it "the greatest scientific book of all time", it does no harm to remember that he hurried to publish "The Origin of Species" because he thought he was about to be scooped by his fellow naturalist Alfred Russel Wallace, who had independently come up with much the same idea of evolution through natural selection.

O。威尔森称其为"世上最伟大的科学著作"）同样伟大的是阿尔弗雷德·罗素·华莱士，他独立地提出了很多相同的通过自然选择而进化的思想。

On the presentation of Mn-P fixation, this paper reviews the latest advances in recent 10 years and concentrates on the mechanism of phosphorus fixation in acid soils. In addition, it brakes through the classical inorganic P fractionation in to Fe-P, Al-P, O-P and Ca-Pin the traditional P classification and considers Mn-P as one of the main phosphorus fixation modes in latosols, cultivated from the parent basalt material. Furthermore, fixation of P by Fe, Al, Mn is compared, and differentiation from chemical availability and bioavailability of P discussed. Based on the above, this paper presents some alienable measures for enhancing P utilization efficiency and postulates pivotal future research directions in the field of P fixation.

本文以Mn-P的提出为出发点，论述了近10年来对酸性土壤固磷机理研究的新进展，突破了常规P素形态分级研究中分为Fe-P，Al-P，O-P和Ca-P等无机磷测定的经典分级，认为玄武岩母质砖红壤中的Mn-P是P素固定的主要形式之一，进而比较了Fe、Al、Mn对P固定作用，并从P的化学有效性与生物有效性差异等方面进行了比较全面的论述，提出了减少P素固定提高磷肥利用率的措施及今后的重点研究方向。

O Be in alignment with what you want and allow it to flow to you.

o在对准你想要的，并允许它流给你。

It is found that in the series of alkaline earth borates the four points of 〓,〓 and SrB〓O〓 are on the same line, but the points of 〓 and BaLiBO〓 deviate from this line.

在碱土硼酸盐系列晶体中〓，〓和SrB〓O〓四种晶体所对应的点处在同一条直线上，而〓和BaLiBO〓晶体所对应的点并没有处在这条直线上。

The effect of alkaline metal, alkaline-earth metal or rare-earth metal oxides doping to Pd/γ-Al〓O〓 on the properties of supported palladium catalysts were investigated.

研究含氧条件下单Pd催化剂上进行丙烯选择催化还原NO的反应，考察浸渍法制备的Pd/γ-Al〓O〓催化剂中加入碱或稀土金属氧化物助剂对NO转化率的影响，并对催化剂进行了XRD表征及在氧化气氛中饱和吸附NO后的TPD研究。

Novel chitosan derivative with long alky groups as the hydrophobic moieties and carboxymethyl groups as the hydrophilic moieties was synthesized. The chemical structure of N-octyl-O, N-carboxymethyl chitosan was characterized via FTIR, 1H NMR and elemental analysis. The physical properties were analyzed with wide angle X-ray diffraction and differential scanning calorimetry.

以天然可生物降解的壳聚糖为原料，通过在壳聚糖6位羟基上引入羧甲基，在2位氨基上引入疏水烷基链，制得N-辛基－O，N-羧甲基壳聚糖两亲性衍生物，分别用FTIR、1H NMR和元素分析等技术对其结构进行表征，用广角X射线衍射和差示扫描量热法对具物理性质进行分析，并考察其在各种溶剂中的溶解性能及其对难溶性药物的增溶能力。

The above mentioned calculation methods is to put alphabetic string into sections by means of a certain characteristic characters or character serials, and then match every subsection respectively, whose computational quantity is approximate to O.

本发明所描述的算法是对字符串先按某种特征字符或字符序列进行分段，然后分别匹配各个子段，运算量近似于O，从而大大降低了运算的复杂度，提高了运算速度。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。