查询词典 D.A.

During these procedures — operations that are done through small cuts in the body in which a miniature camera and surgical tools are maneuvered — surgeons are wearing 3-D glasses for a better view.

根据关键词better view等可定位到文章倒数第二段第一句， During these procedures 和题干During virtual reality operations 对应，本句大意为：在这些操纵微型摄像头和手术器具、通过身体上的小切口进行手术的过程中，医生戴着3-D眼镜以获得更好的视觉。

One of the key technical difficulties and one of the means to achieve high-speed A / D converter.

其中的关键和技术难点之一就是要实现高速率的A/D转换。

A/D converter is very important in industry measure and control.

A/D转换器件在工业测量和控制系统中占有很重要的地位。

Not according to the 6% Rule, because his account is already exposed to a 6% risk in stocks B, C, and D (he is no longer risking any equity in stock A). He must pass up stock E.

按6%原则，不应该买进，因为在股票B、C和D（在股票A 中，它的资金已经不承担任何风险）中，他的账户已经有6%处于风险之中，他必须放弃股票E。

System this is it glimmer A/D converter AD9048 to include, a high speed RAM, address counter and corresponding control logic.

该系统包括了闪烁A/D转换器AD9048，高速RAM，地址计数器和相应的控制逻辑。

If the oxygen sensor heater circuit is wired directly to the control unit, an A/D converter with a basic shunt circuit is used to directly check the current of the circuit Fig.

如果氧传感器加热电路直接连接到控制器，具有一个基本的并联电路的 A/D 转换器可用于直接检查当前的电路(图 6)。

Q: A and B are playing C and D in a four-ball match.

问：A和B与C和D进行四球二对二比赛。

A may have been around for a long time and have many clients such as B, C and D.

方案N1的潜在灾祸很明显。A可能已经被访问了很长的一段时间并且有许多B，C和D这样的客户端。

We study on the controllability of parabolic systems with a nonlinear term involving the state and the gradient ,the null controllability property of a 1-d parabolic equation involving a fractional power of the Laplace operator ,null controllability of some systems of two parabolic equations with one control force ,and exact controllability of the parabolic system with bilinear control.

我们研究了含有状态和梯度的非线性的项抛物系统的能控性，含有拉普拉斯算子的分数阶的1-d抛物方程的零能控性，带有一个强控制的两个抛物方程的一些系统的零能控性和具有双线性控制抛物系统的精确能控性。

The second part is the controllability of parabolic equation .We study on the controllability of parabolic systems with a nonlinear term involving the state and the gradient ,the null-controllability property of a 1-d parabolic equation involving a fractional power of the Laplace operator ,null controllability of some systems of two parabolic equations with one control force ,and exact controllability of the parabolic system with bilinear control .

第二部分写的是，抛物方程的能控性，我们研究了含有状态和梯度的非线性的项抛物系统的能控性，含有拉普拉斯算子的分数阶的1-d抛物方程的零能控性，带有一个强控制的两个抛物方程的一些系统的零能控性和具有双线性控制抛物系统的精确能控性。

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。