查询词典 cascade

Hypoxia induces dedifferentiation of neuroblastoma cells in vivo and in vitro, and under oxygen-compromised conditions the Notch cascade is activated.

在体内和体外缺氧可诱生成神经细胞瘤的去分化，而氧妥协的情况下，Notch信号则被激活。

As we all know, it is equivalent to the null controllability of a cascade system governedby two linear degenerate parabolic equations. Next, we study the null controllability of acascade system governed by a semilinear degenerate parabolic equation and a semilinear heatequation.

众所周知，这等价于两个线性退化抛物方程构成的耦合系统在单个控制作用下的零能控问题；接下来我们又考虑了一类半线性退化抛物方程与半线性热方程构成的耦合系统的零能控问题。

Through careful analysis of the mathematics model of daily dispatching optimization of the cascade hydropower station, a new method based on the combination of two dimensional dynamic programming and discrete differential dynamic programming is proposed.

通过仔细分析梯级水库日优化调度的数学模型，提出了一种基于二维动态规划和离散微分动态规划相结合的混合求解策略，该策略理论上严谨，计算时间比较短，能满足日常调度的需要。

According to its characteristics, it explains using cascade control system is suitable when the lag of object and time constant is large, disturbing function is strong and frequent, and the change of burden is great.

根据串级控制系统的特点，说明了当对象的滞后和时间常数很大，干扰作用强而频繁，负荷变化大，使用串级控制系统是合适的。

In this article will introduce combustion control system that satisfactorily used in two reheating furnaces in Pangang Hot Strip Mill, and explain the principle of cascade scale control with double crossing limit range detailedly.

本文介绍了在攀钢热轧板厂两座加热炉上成功使用的燃烧控制系统，对核心环节双交叉限幅串级比例控制原理予以了详细说明，作为成功范例，值得推广。

Double refraction and/or double internal reflection in a crystal along multiple successive interfaces can be seen as a cascade of that along two successive interfaces, and thus may also be calculated.

在此基础上，分析了前一界面输出量和后一界面输入量之间的联系，可以计算两个界面上的连续双折射双反射。

According to the characteristic of mixture combustion of air and gas, it's said that combustion system adopts the technology of double-cross amplitude limitation and cascade proportional control, also designs the implementations of furnace pressure, wind pressure, gas pressure and regenerative combustion system in the article.

2根据空气和煤气混合燃烧的特点，提出了燃烧系统采用双交叉限幅串级比例控制技术，并设计了炉压、风压、煤气压力、蓄热式燃烧系统的实施方案。

While, downscale energy cascade prevails in the traditional model.

而传统模式中能量向优势波长的集中主要为降尺度过程。

Following process and equipment were adopted,a new process of cascade SCOT tail gas treatment,a gas suctior replacing the recycle air blower at start-up,air cooling replacing fresh water cooling for waste steam exhausting pipe, an advanced LD Duiker sour gas burner,a hot-wall burner,a semi-tube distributor reactor.

该装置采用串级SCOT新工艺，气抽子代替开工循环风机，空冷代替排汽筒新鲜水直接冷却；采用先进的LD Duiker酸性气燃烧器；燃烧炉采用热壁，反应器采用半管分布器。

Mrs. RACHEL lynde lived just where the Avonlea main road dipped down into a little hollow fringed with alders and ladies' eardrops and traversedby a brook that had its source away back in the woods of the old Cuthbert place; it was reputed to be an intricate headlong brook, in its earlier course through those woods, with dark secrets of pool and cascade but by the time it reached Lynde's Hollow it was a quiet, well-conducted little stream, for not even a brook could run past Mrs.

雷切尔。林德太太住在阿冯利亚的大路和小山谷交界的地方，周围长满了赤杨和大红色的倒挂金钟。一条小溪横穿过山谷，它的源头在老卡斯伯特家的树林里；这条小河在流经树林的最初阶段，以众多的支流和莽撞的劲头而著称，一路留下无数隐秘的池塘和小瀑布。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。