在初中动物课中,为让学生知道蛋上有许多小气孔存在,本刊曾介绍过续岐山(见本刊1959年1期)和张善化(见本刊1959年7期)同志的注射法。我们把鸡蛋钝端(有气室的一端)插在砂浴中,露出尖端一部分,约1/2弱。用酒精灯或喷灯加热。(见附图)片刻后,可看到在露出的蛋壳表面出现许多液珠。这是蛋受热后, In the junior middle school animal class, in order to let students know that there are many stomata in the egg, this journal has introduced ginseng injection methods such as Qishan’s (1959-1) and Zhang Shanhua’s (1959-7). We put the blunt end of the egg (one end of the plenum) into the sand bath, revealing the tip part, about 1/2 weak. Heat with alcohol or blowtorch. (See photo) A moment later, you can see that many drops of liquid appear on the exposed shell surface. This is the egg is heated,