by means of; through; via; to adopt; to pass through; to get through; to switch over[cedict]
第一
dì yīㄉㄧˋ ㄧ
first; number one[cedict]
道
dàoㄉㄠˋ
direction; way; method; road; path; classifier for long thin stretches, rivers, roads etc; principle; truth; morality; reason; skill; method; Dao (of Daoism); to say; to speak; to talk[cedict]
红外线
hóng wài xiànㄏㄨㄥˊ ㄨㄞˋ ㄒㄧㄢˋ
infrared ray[cedict]
就
jiùㄐㄧㄡˋ
at once; right away; only; just (emphasis); as early as; already; as soon as; right away; then; in that case; as many as; even if; to approach; to move towards; to undertake; to engage in; to suffer; subjected to; to accomplish; to take advantage of; to g[cedict]
过关
guò guānㄍㄨㄛˋ ㄍㄨㄢ
to pass a barrier; fig. to get through (an ordeal); to pass (a test)[cedict]