adequate size meaning in English

准确的大小/足够的规模

Is plumbing of adequate size and design to prevent an unsanitary condition
管径在设计上是否充分考虑了防止不清洁因素？
Washbasins and tub baths should be of adequate size and constructed of approved material with a smooth surface not liable to crack , flake or corrode
洗脸池和浴缸应具备适当的尺寸，用表面光滑，不易开裂、剥落或腐蚀的认可材料制成。
Equipment used in the manufacture , processing , packing , or holding of a drug product shall be of appropriate design , adequate size , and suitably located to facilitate operations for its intended use and for its cleaning and maintenance
用于制造、处理、包装和保存药物的设备都要设计合理，大小适当，摆放位置方便使用，清洗和维护。