The six food groups include grain products, vegetables, fruits, milk and milk products, meats and meat alternates, and a miscellaneous group.

Day alternates with night.

昼夜交替.

He alternates joy with grief.

他时喜时忧.

The flood and ebb tides alternates with each other.

涨潮和落潮交替更迭。

In most jurisdictions, twelve jurors and two alternates are chosen.

大多数辖区都会选出12名陪审员和2名候补陪审员。

This system supplies water to boilers by alternating header pipes.

本系统采用切换母管制向锅炉供水.

The numerical stability alternating use of fixed step and varying step.

求解过程中定步长和变步长联合使用,解决了计算结果的稳定性问题.

Alternating the basic stroke set can change the type of font generated.

改变基本笔划库,可改变生成的字体种类.

Fluid stains from alternating high and low spot reflect the surface energies of fluid and fiker.

源于高低交替分布点的流体污垢反映了流体与纤维双方的表面能.

This high frequency alternating current produces the high frequency radio waves mentioned in the previous chapter.

这种高频交流电流产生前一章提到过的高频无线电波.

Alternating sandstones and shales are regarded as important.

蚀变的砂岩和页岩是很重要的.

Many life processes involve alternating voltages and currents.

许多生命过程涉及到交变电压和交变电流.

So far we have described the propagation of alternating magnetic fields.

至此我们讨论了交变磁场的传播.

The process of alternating solid rock masses is called metamorphism.

固体岩体变换的过程即所谓变质作用.

Alternating current reverses from negative to positive about 60 times a second.

交流电由负到正一秒钟大约变换六十次.

The beating of heart induces alternating currents in the surrounding tissues.

心脏的搏动在其周围组织中感应出交流电流.

The measurement of alternating potential difference may be perturbed by stray current.

交变电位差的测量可能受到游散电流的影响.

Hope it could instruct the chose of the power alternating current squirrel case motor's starting mode.

希望对低压交流电机起动方式的选择能起到指导作用.

This approach was unconventional because most contemporary experimenters employed a single alternating current in their systems.

这个办法并不寻常,因为当时大部份的实验者在他们的系统里,都是采用单一的交流电.

Power Direct Current ( DC ) input and Alternating Current ( AC ) input were designed respectively in this thesis.

本文设计了直流输入和交流线电压输入下的平面 介质阻挡 放电光源的高频高压电源电路.

Alternating current ( A . C ) is a kind of eletric current that continually surges to and fro.

交流电是一种连续不断来回波动的电流.