A cable laying vessel is a specialized ship designed for the installation of subsea cables, including power and communication cables, on the seabed. These vessels are equipped with advanced machinery for handling, laying, and securing cables in offshore environments, ensuring precise placement and protection of cables for projects like offshore wind farms, oil and gas platforms, and telecommunications networks.

A caravan and a motorhome are two distinct types of recreational vehicles. A caravan is a temporary residence that requires a vehicle to tow. A motorhome, on the other hand, is a self-contained vehicle that combines transportation and living quarters, including bedrooms, kitchenettes, and bathrooms, all integrated into a single unit.

Car sharing service is a model where people rent cars for a short period of time using a mobile application.

Billiards and snooker are popular cue sports that are played on tables covered with a baize with pockets in each corner in the middle of each long side. These games are played with cue sticks and synthetic hard balls. These games are aimed at pocketing the balls for points. Billiards and snooker are played using different strategies. Billiards and snooker equipment include tables, cue sticks, balls, bridges, racks, chalk among others.

Big data services refer to services that include big data business consulting, big data outsourcing, big data project-based services, and support and training services related to big data implementations.

证券：本周成交量同比高增但环比小幅回落，政策与市场情绪依旧提供了强力支撑，杠杆资金持续流入。年初至今 IPO 与再融资节奏平稳，聚焦新质生产力。公募基金方面，规模持续增长，股票型基金占比小幅增加。从业绩弹性和估值溢价角度考虑，建议关注四条主线：1）AI 应用能力有望被重新定价+一季度业绩高增长；2）强贝塔弹性的金融科技与互联网券商；3）券商并购预期增强的受益标的。

本周申万电子细分行业普跌。申万电子二级指数年初以来涨跌幅分别为：半导体（+6.14%）/其他电子Ⅱ（+2.33%）/元件（+11.54%）/ 光学光电子（+2.38% ）/ 消费电子（+5.50% ）/ 电子化学品Ⅱ （+2.69%）；本周涨跌幅分别为半导体（-4.62%）/其他电子Ⅱ（- 3.60%）/元件（-3.73%）/光学光电子（-3.55%）/消费电子（- 3.62%）/电子化学品Ⅱ（-2.89%）。

新能源汽车：我国新能源汽车功率200kW以上的主驱占比由22年的9%提升至25年1月的28%，电驱最高峰值功率由22年255kW升至25年1月的450kW。整车情况：根据中汽协数据，我国2月新能源汽车单月销量89万辆(YoY+87.1%,MoM-5.5%)，产量88.8万辆(YoY+91.6%,MoM-12.5%)，单月新能源车 渗透率为41.9%。主驱功率模块情况：主驱IGBT模块主力厂商芯联集成、时代电气、士兰微、斯达半导领先优势逐步确立，海外厂商份额逐步下降，未来行业格局将逐步收敛，竞争主要来源于头部厂商的份额切换。

全面论述国产算力行业发展情况及未来趋势。本报告主要分为两部分：第一部分从国产算力需求端和供给端展开分析，探讨国产算力自主可控的必要性以及国产算力的需求爆发趋势。第二部分从具体产业链环节入手，国产算力的自主可控将为多个产业链环节带来增量，主要包括芯片、先进封装、组装、电源、散热、连接、交换机&光模块等方面，第二部分具体探讨国产算力爆发将为哪些产业链环节带来增长。

全球存储芯片行业市场规模呈现周期性波动，通常 4 年为一循环。2023 年全球存储芯片市场规模在周期底部，受益供应原厂减产及 AI 需求增加，2024 年开始同比大幅回升，相比以往存储周期，此轮周期复苏更快。根据 CFM，2025 年 NAND 芯片行业或处于价跌量增时期，随着 AI 需求增加的边际效应减弱，2025 年 NAND 芯片行业或呈现温和下滑态势。