宝丽来胶卷感光性非常强。Polaroid film is very sensitive.这块感光板被降低了感光性.The photographic plate was desensitized.近期育成的大穗品种多有明显的春性化、强感光性, 需要加以改进.But there were obvious spring and strong photoperiodism spike cultivars . These need to impr...
The two stresses can then be added algebraically to obtain the resultant.然后将两种应力代数相加就得到合应力.It is much easier to indicate how to find the mean by expressing the procedure algebraically.用代数的方法来表现这个过程,就更容易说明平均数是如何求得的.First ...