C1級 使用帆和槳的船舶模型。包括各種帆船（以風為主要動力）、搖擼船、槳船、維京海盜船、小劃子、舢板、貢都拉（威尼斯小舟）、獨木舟等。帆船上是否張掛風帆由制造者選定。
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級 機械動力船舶的模型。包括駁船模型和有一面輔助帆的捕魚船模型。
Model of C2 class mechanical power ship. It includes a barge model and a fishing boat model with an auxiliary sail.
C3級 船舶設備或船舶局部的模型。包括船體剖面、甲板建筑，與船體有聯系或獨立完整的一部分。船舶部件，如絞盤、系纜柱、連同吊艇架的小艇、吊車、錨機等。
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.
由不少于三個模型或局部模型構成，有船舶、航海標志、無自身動力的飄浮設備等組成的動作場面演示，碼頭和造船廠設備，船舶發展階段演示等。航海與造船場景模型（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級又分為A、B、C、D四種：
Grade C3 is divided into four types: A, B, C and D:
C3-A 港口和船塢設備，碼頭、船閘等。 C3-B 木質船舶模型。 C3-C 水線以上部分的船舶模型。 C3-D 船舶的一部分，船上設備，縱、橫剖面或局部。
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級 微型航海模型
C4 Mini navigation model
1:250或更小比例的C1-C3級模型（不含場景）。
1: Level C1-C3 models with a scale of 250 or less (excluding scenes).
C4級又分為A、B、C、D四種：
C4 is divided into four types: A, B, C and D:
C4-A 帆船模型（同C1級）。 C4-B 機械動力船舶的模型（同C2級）。 C4-C 船舶的局部或船舶設備、剖面、片斷等模型（同C3級）。 C4-D 由至少三個模型組成的帆船或動力船的發展演示。
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級 玻璃瓶裝航海模型。
C5 glass bottle navigation model.
放在玻璃容器內的航海模型，船舶需按比例制作，可以是現存的或曾有過的海船或內河船，或它們的局部。也可以是碼頭和造船廠設備，整個航海場面的展示。
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級 塑料拼裝模型。
C6 plastic assembly model.
采用可以購買到的航海模型套材（商業制品）制作。允許利用其它材料對套材做部分改變，改變的部分應有原始資料或照片予以證實。
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級 紙板、紙質模型。
C7 paperboard and paper model.
以紙為原料作成的航海模型。
A navigation model made of paper.
C7級分為兩種：
Level C7 is divided into two types:
C7-A 商業套材作成的紙質模型，不允許采用其它材料。索具可用其它材料，內部可用其它材料加固，此外，不允許有改變。 C7-B 商業套材制作的紙質模型，可以采用其它材料，但必須是紙模型的特點。
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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