最早的动物胚胎化石,约于五亿七千万至六亿年前形成,发现于中国东面的陡山沱.Fossilized animal embryos of 570 - 600 million years ago from Doushantuo formation of East China.长江发源于世界屋脊 -- 青藏高原的各拉丹冬雪山西南侧,正源沱沱河,南源当曲河,北源楚玛尔河.It originates from the Tuotuo River on ...
...the heavy city traffic with its endless delays at lights and crossings.在交通灯和十字路口前长久等待的拥堵的城市车流His erudition was apparently endless.他的学问显然博大精深。China International Horologe Exhibition , an event with endless business opp...
Antibodies in the yolk are collectively named yolk immunoglobulin ( IgY ).此蛋黄中的抗体称为IgY( YolkImmunoglobulin ).DeternSning contents of immunoglobulin and alexin in milk by Agar Immunodiffusion technique.用琼脂单项免疫扩散法测定牛乳免疫球蛋白...
在用之前添加硬化剂到丙烯酸瓷釉中.A hardener is added to the acrylic enamel just before use.目前采用的治疗方法有手术 、 激光、硬化剂注射 、 微波照射等.Treatment methods include surgery, laser therapy and sclerotherapy, microwave irradiation and others.Fiberfrax 涂料...
Poach the pears in apple juice for perhaps ten minutes at most.把梨放入苹果汁中，最多煮10分钟左右。We need 100 tons of cement at most for this project.这项工程满打满算有一百吨水泥就足够了.There were at most twenty people in the classroom.教室里最多不过20人....