英语高手..可以帮我把酒精灯的使用方法翻成英文吗?

Question

1．酒精灯的使用方法

使用酒精灯时，先要检查灯芯，如果灯芯顶端不平或已烧焦，需要剪去少使其平整，然后检查灯里有无酒精，灯里酒精的体积应大于酒精灯容积的1／4，少于2／3。在使用酒精灯时，应注意，绝对禁止用酒精灯引烧另一盏酒精灯，而应用燃着的火柴或木条来引燃；用完酒精灯，必须用灯帽盖灭，不可用嘴去吹灭，否则可能将火焰沿灯颈压入灯内，引起着火或爆炸。不要碰倒酒精灯，万一洒出的酒精在桌上燃烧起来，不要惊慌，应立即用湿抹布扑盖。

2．给物质加热

酒精灯灯焰分外焰、内焰、焰心三部分，在给物质加热时，应用外焰加热，因为外焰温度最高。

注意：

1）．在用酒精灯加热可以用试管、烧瓶、烧杯、蒸发皿来给液体加热，在加热固体时可用干燥的试管、蒸发皿等，有些仪器如集气瓶、量筒、漏斗等不允许用酒精灯加热。（烧杯不可直接放在火焰上加热）

2）．如果被加热的玻璃容器外壁有水，应在加热前擦拭干净，然后加热，以免容器炸裂。

3）．加热的时候，不要使玻璃容器的底部跟灯芯接触，也不要离得很远，距离过近或过远都会影响加热效果，烧得很热的玻璃容器，不要立即用冷水冲洗，否则可能破裂，也不要立即放在实验台上，以免烫坏实验台。

4）．给试管里的固体加热，应行进行预热，预热的方法是：在火焰上来回移动试管，对已固定的试管，可移动酒精灯，待试管均匀受热后，再把灯焰固定在放固体的部位加热。

5）．给试管里的液体加热，也要进行预热。同时注意液体体积最好不要超过试管体积1／3，加热时，使试管斜一定角度（45°左右），在加热时要不时地移动试管，为避免试管里的液体沸腾喷出伤人，加热时切不可将试管口朝着自己和有人的方向，试管夹应夹在试管的中上部，手应该持试管夹的长柄部分，以免大拇指将短柄按下，造成试管脱落。

6) 特别注意在夹持时应该从试管底部往上套，撤除时也应该由试管底部撤出。

Answer 1

1. Light alcohol use

The use of alcohol lamp, the wick first check if the wick to the top grievances have been burned or need a small cut its formation, and then check whether the light in alcohol, in light of the volume of alcohol should be greater than the volume of alcohol lamp 1 / 4 , Less than 2 / 3. In light of alcohol use, should be noted that the absolute ban on alcohol lamp burning cited another alcohol lamp lights, and the application of burning wood or matches to be ignited; run out of alcohol lamp, the lamp cap must be built out, not mouth Blew out to, or likely to light the flame along the neck into the pressure inside the lamp, causing a fire or explosion. Do not Pengdao alcohol lamp, in case a sprinkling of alcohol burning on the table, do not be alarmed, should immediately head covered with wet cloth.

2. Heating the material to the

Alcohol lamp flame lights especially flame, the flame inside, Yan Xin three parts to the material in the heating, the application of heat Wai Yan, Wai Yan as the maximum temperature.

NOTE:

1). Alcohol use in the heat lamp can be test-tube, flask, beaker, the evaporation of liquid to the dish to heat, heat the dry solids can be used when the test tube, dish, such as evaporation, and some instruments, such as cylinder set, graduated cylinder, funnel, and so does not allow alcohol use light heating . (Beaker can not be placed directly on the flame heating)

2). If the heating of the outer wall of glass container of water should be heated in the pre-polished clean, and then heated in order to avoid cracking the container.

3). Heating, do not make glass containers at the bottom of the contact with the wick, not far from that distance too far or too close to affect the heating effect of the glass container burned hot, do not immediately rinse with cold water, or may break down Do not experiment on the platform immediately, so as not to Tanghuai test.

4). To the test tube in the heat of solid, warm-up should be conducted, the warm-up is: moving back and forth on the flames in the test tube, the tube has been fixed, mobile alcohol lamp, test-tube to be uniform heat, flame lights and then fixed in the release Solid parts of the heating.

5). To the test tube, heating the liquid, but also for warm-up. At the same time, attention to the volume of liquid is best not to test-tube volume of more than 1 / 3, heating, the test tube to make a certain oblique angle (45 ° or so), or when heated to move test tube, in order to avoid the test tube in boiling liquid smoke wounding, heating It must not turn when the test tube and his mouth was moving in the direction of the tube should be caught in the folder in the upper part of the test-tube, hand-held test-tube folder should be part of the long-handled, so as not to thumb to press the Q, resulting in test-tube off.

6) Special attention should be gripping from the test tube at the bottom of the pack up, when they should be removed from the test tube at the bottom of the withdrawal