五月，在苗圃里施上肥。In May, mulch the bed with garden compost.他从五月到七月创作了三部短剧.He produced three short plays between May and July.他们在五月二号有个约会.They made an appointment for the second day of May....
GaN thin films were prepared on Si ( 111 ) substrates by electrophoretic deposition ( EPD ) technique.采用 电泳沉积 法在Si ( 111 ) 衬底上制备出了GaN薄膜.This is the GaN LED chip and Yttrium Aluminum Garnet ( YAG ) package together cause....