C1级 使用帆和桨的船舶模型。包括各种帆船（以风为主要动力）、摇撸船、桨船、维京海盗船、小划子、舢板、贡都拉（威尼斯小舟）、独木舟等。帆船上是否张挂风帆由制造者选定。
Class C1 ship model using sails and oars. Including all kinds of sailboats (mainly driven by the wind), roll boats, paddle boats, Viking pirate ships, rowers, sampans, gondolas (Venice boats), canoes, etc. Whether to hang sail on the sailboat is selected by the manufacturer.
C2级 机械动力船舶的模型。包括驳船模型和有一面辅助帆的捕鱼船模型。
Model of C2 class mechanical power ship. It includes a barge model and a fishing boat model with an auxiliary sail.
C3级 船舶设备或船舶局部的模型。包括船体剖面、甲板建筑，与船体有联系或独立完整的一部分。船舶部件，如绞盘、系缆柱、连同吊艇架的小艇、吊车、锚机等。
C3 class ship equipment or local model of the ship. Including hull profile, deck structure, which is connected with the hull or an independent and complete part. Ship components, such as winch, mooring post, small boat with davit, crane, windlass, etc.
由不少于三个模型或局部模型构成，有船舶、航海标志、无自身动力的飘浮设备等组成的动作场面演示，码头和造船厂设备，船舶发展阶段演示等。航海与造船场景模型（比例不限）。
It is composed of no less than three models or local models, including action scene demonstration composed of ships, navigation signs, floating equipment without its own power, wharf and shipyard equipment, ship development stage demonstration, etc. Navigation and shipbuilding scene model (unlimited scale).
C3级又分为A、B、C、D四种：
Grade C3 is divided into four types: A, B, C and D:
C3-A 港口和船坞设备，码头、船闸等。 C3-B 木质船舶模型。 C3-C 水线以上部分的船舶模型。 C3-D 船舶的一部分，船上设备，纵、横剖面或局部。
C3-a port and dock equipment, wharf, ship lock, etc. C3-b wooden ship model. Ship model above c3-c waterline. Part of c3-d ship, shipboard equipment, longitudinal, transverse section or part.
C4级 微型航海模型
C4 Mini navigation model
1:250或更小比例的C1-C3级模型（不含场景）。
1: Level C1-C3 models with a scale of 250 or less (excluding scenes).
C4级又分为A、B、C、D四种：
C4 is divided into four types: A, B, C and D:
C4-A 帆船模型（同C1级）。 C4-B 机械动力船舶的模型（同C2级）。 C4-C 船舶的局部或船舶设备、剖面、片断等模型（同C3级）。 C4-D 由少三个模型组成的帆船或动力船的发展演示。
C4-a sailboat model (same as Class C1). C4-b mechanical power ship model (the same as C2 level). Local or ship equipment, profile, fragment and other models of c4-c ship (the same as level C3). C4-d demonstration of the development of sailboats or powerboats consisting of at least three models.
C5级 玻璃瓶装航海模型。
C5 glass bottle navigation model.
放在玻璃容器内的航海模型，船舶需按比例制作，可以是现存的或曾有过的海船或内河船，或它们的局部。也可以是码头和造船厂设备，整个航海场面的展示。
The navigation model placed in the glass container needs to be made to scale. It can be an existing or existing sea ship or inland river ship, or part of them. It can also be the display of wharf and shipyard equipment and the whole navigation scene.
C6级 塑料拼装模型。
C6 plastic assembly model.
采用可以购买到的航海模型套材（商业制品）制作。允许利用其它材料对套材做部分改变，改变的部分应有原始资料或照片予以证实。
It is made of commercially available marine model sheathing materials. It is allowed to use other materials to make partial changes to the sheathing materials, and the changed parts shall be confirmed by the original data or photos.
C7级 纸板、纸质模型。
C7 paperboard and paper model.
以纸为原料作成的航海模型。
A navigation model made of paper.
C7级分为两种：
Level C7 is divided into two types:
C7-A 商业套材作成的纸质模型，不允许采用其它材料。索具可用其它材料，内部可用其它材料加固，此外，不允许有改变。 C7-B 商业套材制作的纸质模型，可以采用其它材料，但必須是纸模型的特点。
The paper model made of c7-a commercial sheathing material is not allowed to use other materials. Other materials can be used for rigging, and other materials can be used for internal reinforcement. In addition, no change is allowed. The paper model made of c7-b commercial sheathing can be made of other materials, but it must be the characteristics of the paper model.
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