查询词典 B-S

If the profile curve has been denoted by a nonuniform rational quadratic B-spline curve, it is very convenient to represent the surface of revolution as a nonuniform rational biquadratic B-spline surface.

只要轮廓曲线用非均匀有理二次B样条曲线来表示，就可相当方便地把旋转曲面表示成非均匀有理双二次B样条曲面。

In this paper, we propose a new visual cryptographic method for gray-level and chromatic images without pixel expansion. We simultaneously encrypt m successive pixels (called an "encryption sequence") each time in accordance with two basis matrices. In every m encryption sequences with b blacks, we make sure that b encryption sequences are encoded by black basis matrix, and the other ones are encoded by white basis matrix.

本研究提出一种不需要像素扩展的灰阶和彩色视觉密码的技术；我们的方法利用多点同时加密的概念，每次取连续的 m 个点做为加密序列进行加密，我们的方法可以确保在 m 个具有 b 个黑点的加密序列中，一定会有 b 个加密序列是使用黑点基础矩阵加密，另外的个则使用白点基础矩阵加密，因此在叠合影像上黑与白的变化很规律。

First a resin, wax, DCHp lowmolecular, methybenzene butanone, according to the formula hybrid toss after 10 minutes, as a part of it; then some resin B liquid toss about 60 minutes, as the b section, make the various ingredients.

先将树脂A液、低分子蜡、DCHp、甲苯、丁酮按配方混合，充分搅拌10分钟后，作为a部分；再加入适量树脂B液充分搅拌约60分钟，作为b部分，使各成分混合均匀。

The results showed that there was no significant difference in three structure approach of liquid layers among which B was relatively higher;and it was considered that one-step dilution was an effective preservation method in that survival capacity with frozen and melted embryos freshly split,and survival capacity of frozen and melted IVF embryos split by one-step dilution by application minimum capacity refrigerant method with specific canaliculus were obviously higher than B.

结果，3种不同液体层构成间胚胎的存活能力无显著差异，B法较高；应用特定细管最小容量冷却法在冷冻溶解的新鲜分割胚、体外受精分割胚及冷冻溶解的体外受精分割胚一步法稀释后的存活能力均显著高于B法。结果表明，特定细管最小容量冷却法是更有效的保存方法。

Wherein, the chemical formula of said compound is γ-HaKbNac(H2O)dNixM1-XO2 and the method comprises that mixing the nickel salt solution and at least one metal salt solution to attain the solution A; preparing caustic soda or caustic potash solution and adding sodium carbonate or potassium carbonate to attain the solution B; preparing the ammonia solution C; reacting the A, B, and C, processing the solid-liquid separation to attain the ball α nickel hydroxide; reacting with the oxidant in the solution of caustic soda or caustic potash to attain the black solid-liquid mixture and processing the solid-liquid separation to attain the ball γ hydroxyl nickel oxide.

其化学表达式为γ-HaKbNac(H2O)dNixM1-XO2，将镍盐溶液与至少一种金属盐溶液混合得溶液A，配制氢氧化钠或氢氧化钾溶液，加入碳酸钠或碳酸钾得溶液B；配制氨水溶液C；将A、B、C反应，固液分离，得球形α氢氧化镍；在氢氧化钠或氢氧化钾溶液中与氧化剂反应，得黑色固液混合物，再固液分离，得球形γ羟基氧化镍。

Secondly, an adaptive real-time interpolation algorithm for B-spline curves is proposed combined with the chord error control and the largest centripetal acceleration control based on the differential geometry and the properties of B-spline curves.

其次，根据B样条曲线的特性以及微分几何原理，实现了一种带弦高误差控制和法向最大加速度控制的进给步长自适应B样条曲线实时插补算法。

Three facts that I'll never ever get wrong again are: the German Panther tank carried a .75 mm cannon, not an 88; in Michigan, at its Willow Run plant, the Ford Motor Company made B-24s, not B-17s; during training, medics were called chancre mechanics, not shank mechanics.

有三项事实在下再不会弄错：德国豹式坦克配备一门点75口径直射炮，不是88口径；福特汽车公司在密歇根威楼峦的飞机厂制造B-24型轰炸机，而非B-17型；集训期间，救护兵被称为梅毒修理工，并非脚杆修理工。

Angular cheilitis malnutrition and nutritional deficiencies in vitamin B family, or zinc deficiency often occur in persons to a lack of vitamin B group the most common cause of angular cheilitis.

营养不良性口角炎在营养缺乏和维生素B族或锌缺乏者中常有发生，以维生素B族缺乏引起的口角炎最常见。

If node A is a child of node B, then B is the parent of A.

如果节点A是节点B的子女，则B是A的父母

The content of Chl a, Chl b and Chl a+Chl b of different kinds of Chinese chive which was treated by p2 was the highest, and 791 xuejiu and Tiancui 791 displayed better than the other two kinds.

而施用适量浓度的磷(80μmol/L)能增强韭菜叶片的光能利用能力。p2处理各品种的Chl a、Chl b和Chl a+Chl b含量为最高，且791雪韭和甜脆791表现优于其他两个品种。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。