供需

gōng xū supply and demand

有效

yǒu xiào effective; in effect; valid

对接

duì jiē to join up; to dock; a joint (between components)

是

shì is; are; am; yes; to be

shì variant of 是[shi4]; (used in given names)

什么

shén me what?; who?; something; anything

意思

yì si idea; opinion; meaning; wish; desire; interest; fun; token of appreciation, affection etc; CL:個|个[ge4]; to give as a small token; to do sth as a gesture of goodwill etc

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