偠tmxr(sh)(yng)(dng)עĆ(wn)}
1şm
ȑ(yng)(dng)˽⮔(dng)?sh)偠tm\(yn)ŷŝȼ偠tşĺmȣӋ(j)m(yng)(dng)еijmЧʣȻxmʽ(j)(sh)ʹm܉_(d)Ŀ(bio)mЧ
2mķɢ
偠tşwɴСͬĉmMɵģзۉmwֱһ3-500um҉mwһֱֽMMռۉmİٷ?jn)?sh)Ƿۉmķɢȡͬijm(du)mɢȵm(yng)Ҳͬ(sh)H(yng)(dng)ͨʹ÷ּ(j)Ч50dc50(li)ʾm(du)ͬmIJQָָǷ(yng)mܵһ(xing)Ҫָ(bio)dc50ԽСf(shu)(du)ۉmIJЧԽߡ
3
NmмO(sh)Ӌ(j)̎ퟟ@(g)O(sh)Ӌ(j)¹ʹm̎ڼ\(yn)РB(ti)(sh)Hؓ(f)׃r(sh)(hu)mЧʵ׃(dng)(sh)Hؓ(f)ɵO(sh)Ӌ(j)ؓ(f)ɕr(sh)mЧʌ½(dng)ؓ(f)ɸO(sh)Ӌ(j)ؓ(f)ɕr(sh)(hu)ʹmӡ
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