小种

The sex chromosome that comes from the father could be one of two types, X for a girl, or Y, a much smaller chromosome, for a boy.

来自父亲的性染色体有两种形态：女孩是X，男孩则是 Y ，一种更小的染色体。

Wind up (i是发字母i本身的音,不是wind风那个音) If you wind up in a particular place, situation, or state, you are in it at the end of a series of actions, events, or experiences, even thought you did not originally intend to be.比如If he continues to spend money this way, he's going to wind up in bankruptcy. How did you ever wind up in this little town in the middle of nowhere?9. Someone is playing a shell game , Bruce. I'm just trying to find out who.

shell game原指一种大家都知道的游戏——藏豆赌博游戏：一种通常涉及赌博的游戏，一个人将一个小物体藏在三个坚果壳、杯子或茶杯中的一个里，然后当旁观者试图猜测物体的最终位置时，这个人在平坦表面上移动果壳、杯子或茶杯以变戏法也作thimblerig，后来可以泛指类似的骗局，不一定是藏豆子，本句里就在说Bruce搞的藏史高飞等人的游戏

The first part is focused on the interaction of several types of siliceous zeolites with some small organic molecules, which was investigated by molecular simulation.

第一部分为几种全硅沸石与一些有机小分子相互作用的分子模拟研究，第二部分为几种低硅石的合成与转晶实验研究。

Metal point or silverpoint ,Method of drawing with a small sharpen ed metal rod-of lead, copper, gold, or most commonly silver-on specially prepared paper or parchment.

金属尖笔亦称银尖笔，一种绘画方法，用一种带尖的小金属棒(铅、银、铜或金制，或通常是银制)在特别准备的纸或羊皮纸上作画。

Metal point or silverpoint ,Method of drawing with a small sharpened metal rod-of lead, copper, gold , or most commonly silver-on specially prepared paper or parchment.

金属尖笔亦称银尖笔，一种绘画方法，用一种带尖的小金属棒(铅、银、铜或金制，或通常是银制)在特别准备的纸或羊皮纸上作画。

However, both methods have comparable results in assaying metals in real samples. In smithsonite, only lead was found as 79.5 ppm and 81.2 ppm by the conventional calibration method and the standard addition method, respectively.

2在重金属铅、镉、铜及镍的回收率检测方面，分别用校正曲线法及标准添加法两种加以分析比较，不论在哪一种金属检测中，标准添加法数值偏差较小，而且测量值较近於实际值。

S extract had an inhibition effect against Sphaerotheca fuligenea,The inhibition rate was 100% when extract concentration was 20mg/mL and the inhibition rate got to 67.66% even at the concentration of 2.5mg/mL. The extract of E. humifusa had different preventive effects against four strains of S. fuliginea from four districts in Shanghai. The preventive effects on the Qibao and Baoshan were better than those of Nanhui and Qingpu. The microorganism inhibition experiment by filter papers indicated that the extract of E. humifusa had higher inhibition effect against bacteria than on pathogenic fungus. Diameters of the zone of inhibition of salmonellas, Echerichia coli and Staphylococcus aureus were 15.77mm, 12.27mm and 10.53mm respectively. The extract of E. humifusa had a certain effect against Colletotrichum lagenarium, Botrytis cinerea, Rhizoctomia solan and Pyricularia oryza but no effect against Helminthosporium maydis and Gibberella zea. The 4 cation exchange resins and ethanol deposition were used to isolate the active fractions from supernate after alkali deposition.

提取液对黄瓜白粉病菌体外分生孢子萌发抑制实验表明地锦提取液对黄瓜白粉病菌分生孢子的萌发有很好的抑制作用，抑制率随着地锦提取液浓度的增大而增高，当浓度为20mg/mL时，抑制率达到100%，即使在浓度为2.5mg/mL时，抑制率也达到了67.66%；室内盆栽苗期预防性实验表明了地锦提取液对上海4个不同地区的黄瓜白粉病菌均具有不同程度的抑制效果，对七宝和宝山地区的菌株抑制效果优于南汇和青浦地区的菌株；用滤纸片法测定了地锦提取液的抑菌谱，实验结果表明地锦提取液对供试的4种植物病原真菌：黄瓜炭疽病菌、黄瓜灰霉病菌、水稻纹枯病菌和水稻稻瘟病菌均具有一定的抑制效果，而对玉米小斑病菌和小麦赤霉病菌没有抑制效果，对供试的3种人类致病细菌沙门氏菌、大肠杆菌和金黄色葡萄球菌均具有很好抑菌效果，抑菌圈直径分别为：15.77mm， 12.27mm和10.53mm。

The cost functions of the linear transversal and decision-feedback blind equalizers are proposed in this thesis, which are strictly convex function with respect to the complex tap-weight vector of the equalizer and the error probability. It is proved that their global convergence are guaranteed by using gradient algorithm.

本文提出了线性横向结构的盲均衡价值函数，DF结构的盲均衡价值函数，证明了这两种价值函数对均横器抽头矢量和系统误差概率，都是严格U函数；并且证明了用梯度算法，这两种价值函数保证收敛到全局极小点。

In view of the key problem of subminiature underwater robots, structural improving,control algorithm and underwater experiment is studied. They can be described as follow: Firstly, the subminiature underwater robot should be compact in size and low cost, for which, it is difficult for us to control its balance. So that, a new kind of piston--style ups and downs system was invented, which can keep the underwater robot horizontally suspended in the water without driving force.

中文摘要本文针对超小型水下机器人在运动中存在的问题，设计了一种新的超小型水下机器人的沉浮结构形式，着重研究了其运动学动力学性能、探讨了相应控制算法、进行了水下试验，具体研究内容如下：首先，超小型水下机器人由于体积小重量轻，在水中沉浮时悬停平衡控制困难，为此进行了一种新的活塞式沉浮系统设计，该系统使水下机器人能够在无动力驱动的情况下，使其呈水平状态稳定悬浮在水中。

"Any of about 13 species of cetaceans in the suborder Mysticeti. They are distinguished by a specialized feeding structure, the baleen, which strain s plankton and small crustaceans from the water."

须鲸亚目约十三种鲸类的统称，与其它种的区别在于有特别的进食构造，即鲸须，或称鲸骨，用来滤取海水中的浮游生物和小甲壳类动物。

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。