Please advise me on the most suitable colour print film and some dos and don'ts.请向我推荐最合适的彩色胶卷，并告诉我一些注意事项。It won't do to hedge your pupils in with a thousand dos and don'ts.用无数清规戒律束缚学生是不行的.I saw Mr. Ts'...
It'sensed a mineral called hematite that often forms under wet conditions.发现一种被称作赤铁矿的矿物质,一般是在湿润的环境下形成的.Iron ores of greatest economic interest contain magnetite and hematite.最具有经济价值的铁矿包括磁铁矿和赤铁矿.Prismatic crystals of...
However, the Z variation of CANBERRA changes its phase as the same with that for HONOLULU.可是, CANBERRA台的变化又和HONOLULU台同相.Tell them that Parliament House sells the cheapest post cards in Canberra.告诉他们国会大厦里卖全堪培拉最便宜的明信片.Why ...
他们保持中立，拒绝表态。They are sitting on the fence and refusing to commit themselves.作为中立的观察员，我的分析应该客观。As an impartial observer my analysis is supposed to be objective.他们在这场危机中丢弃了中立立场。They had thrown their neutrality overboard in...
在一场旋风式的恋爱后他很快就结婚了。He got married after a whirlwind romance.经过一场旋风式恋爱, 他们结了婚,到巴斯生活去了.After a whirlwind courtship, they married and went to live in Bath.昨晚异常猛烈的旋风吹袭了那个小镇.An exceptionally violent cyclone hit the town last n...
移频键控是短波数字通信中常用的一种调制方式.The Frequency Shift Keying modulation is widely used in HF digital communication.本文研究了一种基于自适应算法的解调差分相移键控(DPSK)信号的方法.This paper deal with the DPSK demodulation method based on adaptive algorithm.相移键控...