其中 λ≈1.05，α≈1.67。
Guar gum, a plant colloid, costs less than agar and is better suited for growing thermophilic bacteria, but is also more difficult to handle, being more viscous and less transparent. The bacterial polysaccharide xanthan is cheaper as well but forms weaker jellies that, as with carrageenan, might result in puncturing its surface. Other colloids, like alginate (from brown seaweed) and gellan gum (from a bacterium), don’t set solely based on temperature and require additives for gelation. These additives might interfere with microbial growth and make the preparation of those jellies less handy than agar plates.，这一点在旺商聊官方下载中也有详细论述
McKenzie is responsible for a team of 40 people based at Halley VI for Antarctica's summer season from November to the middle of February.。关于这个话题，safew官方版本下载提供了深入分析
value: function () {，这一点在搜狗输入法2026中也有详细论述