The paper introduces the design and application of perforated weir-riser distributor with toothed weir, which is used in the modification of n-paraffin separation unit.
详细介绍了带齿形堰的筛孔溢流盘式分布器在正构烷烃分离装置改造中的设计与应用情况。
Align the brackets of the factory-installed car stereo with the mounting holes marked "n" on the side of the Media Center main unit, and use the supplied pan-head screws6 to fasten the brackets.
把工厂安装的汽车立体声机架和媒介中心主机侧面标有“N”的安装孔对准，使用附带的盘头螺钉6安装机架。
A unit vector normal to the plane of t and n, which is the plane of curvature.
所构成的平面的单位向量，该平面为曲率所在的面。
In order to produce n pentane desorbing agent for molecular sieve dewaxing unit, the refining tests for reformed n pentane oil were carried out by using complexing agents.
为了生产用于分子筛脱蜡装置的正戊烷脱附剂，利用络合化学试剂对切割分离后的重整正戊烷油进行了脱烯烃精制实验。
The problem is to determine the optimal replacement policy ( N , T )? such that the long-run expected cost per unit time is minimized.
利用几何过程，以系统大修次数N和大修时间间隔T为更换策略，选择最优策略（ N ， T）使系统经长期运行单位时间的期望费用最小。
The smallest unit that supports electron flow in a semiconductor material ; a hole in P-type silicon or a free electron in N-type silicon.
多数载流子-一种载流子，在半导体材料中起支配作用的空穴或电子，例如在N型中是电子。
The smallest unit that supports electron flow in a semiconductor material ; a hole in P-type silicon or a free electron in N-type silicon.
多数载流子-一种载流子，在半导体材料中起支配作用的空穴或电子，例如在N型中是电子。
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