Poncirus trifoliata(L.) Raf is a small tree of Rutaceae, with a height of 5 meters and an umbrella or round crown, also known as citrus. The branches are green, and the petiole has long and narrow wings, usually with three fingers. The leaflets are equal in length or large in the middle, and the two sides are symmetrical or asymmetrical. The midvein of tender leaves has fine hairs, and the flowers are solitary or axillary in pairs. Flowers are large and small, petals are white, spoon-shaped, and filaments are different in length. The fruit is nearly spherical or pear-shaped, with great differences in size. The top of the fruit is slightly concave, with annual rings, dark yellow skin, rough, full stone, sticky axillary pulp, slightly citron smell, very sour and bitter, astringent and seed flavor; It is oval in shape with mucus, blooms in May and June, and bears fruit in10-165438+10.

Naming principle of net name:

1, which meets the requirements of image positioning.

The screen name is a combination of your own images, which directly conveys that the screen name you don't like is not a good screen name. The screen name must first create the image you want.

2. Be able to attract others' attention.

People naturally want to be the focus of attention. A good screen name can only be regarded as easy to remember, vivid and beautiful.

3. Use screen names correctly

It is indeed a pleasant thing to choose a screen name that pleases us and attracts the public, but we should establish our own moral and legal concepts in online activities, and we should not spoof or hurt the feelings of others (historical figures) so as not to attract saliva and legal punishment.

4. The length of the screen name should be legal.

The maximum limit of QQ user name is 24 bytes, that is, 12 Chinese characters or 24 characters or numbers.