D layer是什么意思

[电] D层

D layer英英释义

名词 d-layer:
  1. the lowest region of the ionosphere (35 to 50 miles up) that reflects low-frequency radio waves

D layer词源英文解释

The first known use of D layer was circa 1934

D layer儿童词典英英释义

do-it-yourselfadjective

of, relating to, or designed for a person without professional training or help to do or make

dogtooth violetnoun

any of a genus of wild herbs that are related to the lilies, grow from bulbs, and produce flowers in the spring called alsoadder's-tongue

Dog Starnoun

sirius

dog-earnoun

the turned-down corner of a leaf of a book

dog daysplural noun

the hot and humid period of summer between early July and early September

doesn't

does not

Doberman pinschernoun

any of a breed of short-haired medium-sized dogs of German origin

D layernoun

a layer or region of the lower ionosphere

D layer 同义词

1 层

story floor bed layer deck formation fold tier streak ply stratum storey zona panniculus terrane

相关词

subsist substantiated subsidies subsoiler subtracting substratum subtenancy substandard subsiding subtext subskill subtitled subtotal subtilization subsistence subtleness substantively subtraction subtilize substitutions subtilisin subthreshold subtopic substantially subspecialty substrate substantial subsidise substantiation subsidize